r/rust

The Rust Programming Language

Founded December 2010 · Public — anyone can post

Updated Sep 30

A place for all things related to the Rust programming language—an open-source systems language that emphasizes performance, reliability, and productivity.

Members

424,382

424K

Online now

—

not captured in the last snapshot

Posts per day

9.8

from the last 100 posts, spanning 10.1 days

Comments per post

16.9

Growth · 7d

—

not enough history yet

Growth · 30d

+0.8%

+3.2K members · ≈25d

Promo tolerance

—

not assessed yet

Last post

Sep 30

sampled Sep 30

Distinct posters

89%

of the last 100 posts

Tracking since Aug 21 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.

Member growth

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r/rust — frequently asked

How many members does r/rust have?

r/rust has 424,382 members as of our most recent crawl on Sep 30. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.

Is r/rust growing?

Over the last ≈25 days r/rust changed by +0.8% — a gain of 3.2K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".

How active is r/rust?

Around 9.8 posts per day, measured from the newest 100 posts on Reddit, which span 10.1 days, averaging 16.9 comments per post. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.

When was r/rust created?

r/rust was founded in December 2010 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.

Who posts in r/rust?

Of the last 100 posts we sampled, 89% came from distinct accounts; the newest was published Sep 30. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.

Can I promote my product in r/rust?

We don't have a promo-tolerance read for r/rust yet. Default to the safe approach: read the sidebar rules, contribute in threads where you gain nothing, and mention your product only when it is the honest answer to someone's question.

How do I monitor r/rust for mentions?

Hit Watch on this page. Prowlo starts crawling r/rust into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.

Can my AI agent read r/rust's stats?

Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/rust's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.

Watch these subreddits

Rankings go stale. Prowlo watches these subreddits daily and pings you the moment someone describes the problem you solve.

r/SaaS · 4m ago

“Our analytics bill tripled overnight. Actively shopping for an alternative this week — what’s good?”

Match · 86%Buying signal

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r/rust Subreddit Stats — 424K members, 9.8 posts/day