Megathread
Also called: mega thread, weekly thread, self-promotion thread, daily thread
Definition
A megathread is a single, usually pinned post where a subreddit collects all discussion on one topic, event or recurring need, such as a weekly self-promotion or questions thread. Moderators use it to keep the main feed from filling with duplicates.
A megathread is one big thread that replaces many small ones. When news breaks, a product launches or a recurring question floods a subreddit, moderators create a single post, pin it, and remove standalone posts on the topic with a note pointing to the megathread.
How it works
Megathreads are normal posts that mods pin to the top of the community. Reddit's community highlights tool even offers "Megathread" as a label for highlighted posts, alongside Event and Announcement. Reddit Help lists common uses for pinned posts that overlap with megathreads: weekly discussion threads, posting community rules, contests and community changes.
Typical kinds:
- Event megathreads for breaking news, launches, outages or game days.
- Recurring threads: daily questions, weekly "what are you working on," monthly hiring threads.
- Self-promotion threads where members may share their own products, links or projects, often weekly.
- Recommendation threads where "which tool should I use" questions are collected.
Why it matters for marketers
In many subreddits, the self-promotion megathread is the only place you are allowed to share your product directly. Posting self-promotion outside it is the fastest way to get removed or banned. Read the community's rules (the sidebar and wiki) to find out which megathread applies and how often it runs.
Megathreads can also be better than they look:
- Readers are there on purpose. People browse "share your project" threads looking for new tools.
- They are searchable and long-lived. Monthly or weekly threads in active communities often rank on Google.
- Recommendation megathreads collect buying intent. Questions that would have been separate posts all land in one place.
The flip side is competition. A self-promo thread with 300 links rewards a short, specific pitch that says who it is for and what it costs, and an author who replies to questions.
Example
A subreddit for indie developers removes any post linking to a product, except in its pinned weekly "Show your work" megathread. A founder posts a three-line comment there: what the tool does, who it is for, the price, a link, and a note that they will answer questions. They reply to every follow-up. Two readers sign up and one asks for a feature that ends up on the roadmap.
Common mistakes
- Posting promotion as a standalone post when a megathread exists.
- Dropping a bare link in the megathread without context.
- Posting in an old megathread after the new one is up. Check the date.
- Repeating the same comment every week with no changes. Many communities treat that as spam; Reddit's spam policy covers repetitive mass-posting.
See Reddit self-promotion rules for the broader picture.
Frequently asked questions
What is a megathread on Reddit?
A single pinned thread where a subreddit collects all posts on one topic or recurring need, so the main feed is not flooded with duplicates.
Where do I find a subreddit's self-promotion thread?
Usually pinned at the top of the community and named in the rules or wiki. Searching the subreddit for "self-promotion" or "weekly" also works.
Can I post outside the megathread if my post is different?
Only if the rules allow it. When a megathread exists, mods often remove related standalone posts and redirect them.