A Reddit post gets deleted instantly and the account is Shadowbanned. The first reaction of 90% of people is “the content is not good”. But the real culprit lies in the “four-dimensional invisible rating” in the background: account reputation, content fingerprint, voting track, IP lineage. As long as one of these indicators shows a red light, the system will throw you into the Spam bin and won’t notify you. Here, we will explain the reasons, diagnosis, and solutions in one go, and also introduce a “hidden channel” that most tutorials overlook – overseas native static IP (Novproxy), which can help you move your new account from 0 to a normal traffic pool.

I. Six Main Reasons for Reddit to Flag Posts as Spam

1. Suspicious Account Origin
   Newly registered accounts with no profile picture, no comment history, and a karma score close to zero are initially treated as potential marketing accounts by the system.
2. Frequent Appearance of Repetitive or Similar Content
   The same text, link, or image being posted multiple times within a short period triggers the “repetitive content” threshold.
3. Low Trustworthiness of Links
   Domains that have been reported by multiple users, globally filtered by Reddit, or contain short links, redirect links, or excessive affiliate parameters are considered untrustworthy.
4. Abnormal Voting Behavior
   A sudden influx of upvotes immediately after posting, or the same IP/device switching accounts to promote posts, is directly marked as “vote manipulation” by the algorithm.
5. Violation of Subreddit Rules
   Each community has its own detailed rules such as “no self-promotion” and “limit on external links,” and posts that violate these rules are instantly deleted by AutoModerator.
6. Blacklisted IP Address History
   Data centers, proxy pools, or shared VPN segments that have been used for bulk spamming are recorded in Reddit’s graylist, and new accounts from these IP segments are downgraded as soon as they log in.

II. What to do? Confirm before taking action

1. Check “User impact”
   Access the post link through an incognito window. If it shows “removed by moderators”, it was manually deleted; if it gives a 404 error or is only visible to you, it was removed by the system’s Spam filter.
2. Read the sidebar and pinned posts
   90% of misjudgments can be found in the corresponding terms in the Wiki or AutoModerator’s instructions.
3. Send a private message to the moderator (modmail)
   Use polite and concise English to ask, “Post removed, may I know the reason?” Most active moderators will reply within 24 hours and manually restore compliant content.
4. Observe the karma curve
   If five consecutive posts receive 0 upvotes and 0 comments and cannot be found in search results, it is likely that the account or IP has been globally downgraded. You need to “change identities” to recover.

III. Long-term solutions (7 points)

1. “Nurture the account” before posting
   Only comment and upvote for the first 7 days after registration. Accumulate over 100 karma and an account age of more than 10 days. The system’s trust level will significantly increase.
2. One link per post, no spamming
   The same domain should appear in only one section within 24 hours. If there are multiple pieces of content, use text posts with embedded links to reduce the density of external links.
3. Make the link “look like a resource” rather than an advertisement
   Remove UTM, ref, and aff parameters and use the original HTTPS address. Include an original summary of over 200 words to show the sharing motive.
4. Actively participate in discussions
   For every self-linked post, leave at least 5 high-quality comments on other popular posts first to maintain a “contribution ratio > self-promotion ratio”.
5. Distribute time and sections
   Rewrite the content from different angles and post it again after 3 days. Avoid crossposting to 10 communities at once.
6. Establish a “whitelist” of domains
   First, post the article on trusted platforms such as Medium and GitHub Pages, and then re-post it on Reddit. This can reduce the probability of being filtered by leveraging the credibility of the platforms.
7. Use a native static IP from overseas (Novproxy is recommended)
   Reddit is extremely sensitive to the “birthplace” of an IP: data center proxies, shared VPNs, and batch-registered IP segments will all trigger hidden downgrading.

• A native static IP refers to an address directly assigned by a home broadband operator and not marked in any proxy database. Reddit regards it as a genuine overseas user.
• Novproxy provides residential IPs from native ISPs in Europe and America, which are exclusively used by a single user and will not be sold to different users. They have a clean history and a more natural karma growth curve.
• Operation method: Register Novproxy → Select “Static Residential” → Locate to the target country (such as the United States) → Create an independent environment in a browser or fingerprint browser → Log in to Reddit and use this IP throughout the process.
• Combined with the “account nurturing + low-frequency link sharing” strategy, a new account can gain normal traffic access within two weeks and significantly reduce the probability of being instantly deleted by the system.

IV. Conclusion

Reddit’s Spam determination is a four-dimensional model of “account age – content quality – voting behavior – IP reputation”. If any dimension scores too low, it will be flagged by the machine. The most hassle-free approach is: first, use a native static IP to cultivate the account into a “trusted resident”, and then share links according to the rules of the community and within limits. As long as both the machine and the moderators believe that you are “here to communicate rather than to exploit traffic”, the Spam label will naturally not be attached to you.