r/HFY
Humanity, Fuck Yeah!
Founded August 2013 · Public — anyone can post
We're a writing focused subreddit welcoming all media exhibiting the awesome potential of humanity, known as HFY or "Humanity, Fuck Yeah!" We welcome sci-fi, fantasy, and all other stories with a focus on humans being awesome!
Members
382,147
382K
Online now
—
not captured in the last snapshot
Posts per day
36.4
from the last 100 posts, spanning 2.7 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
—
not enough history yet
Promo tolerance
—
not assessed yet
Last post
Aug 29
sampled Aug 29
Distinct posters
80%
of the last 100 posts
Tracking since Aug 29 · 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
Tracking since Aug 29 — growth charts appear after a week of history.
Similar by content
Communities that discuss what r/HFY discusses.
A parody of writing communities. Don't post your writing here.
A place for fanfics, fanart, and discussion of the r/HFY series the Nature of Predators. Welcome!
A subreddit devoted to the field of Future(s) Studies and evidence-based speculation about the development of humanity, technology, and civilization. -------- You can also find us in the fediverse at - https://futurology.today
For artists, writers, gamemasters, musicians, programmers, philosophers and scientists alike! The creation of new worlds and new universes has long been a key element of speculative fiction, from the fantasy works of Tolkien and Le Guin, to the science-fiction universes of Delany and Asimov, to the tabletop realm of Gygax and Barker, and beyond. This subreddit is about sharing your worlds, discovering the creations of others, and discussing the many aspects of creating new universes.
See the full lists on similar subreddits.
r/HFY — frequently asked
How many members does r/HFY have?
r/HFY has 382,147 members as of our most recent crawl on Aug 29. 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/HFY growing?
We don't have 30 days of snapshot history for r/HFY yet, so we're not going to invent a growth number. We've been tracking it since Aug 29; the chart fills in as history accumulates.
How active is r/HFY?
Around 36.4 posts per day, measured from the newest 100 posts on Reddit, which span 2.7 days. 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/HFY created?
r/HFY was founded in August 2013 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/HFY?
Of the last 100 posts we sampled, 80% came from distinct accounts; the newest was published Aug 29. 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/HFY?
We don't have a promo-tolerance read for r/HFY 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/HFY for mentions?
Hit Watch on this page. Prowlo starts crawling r/HFY 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/HFY's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/HFY'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.
Read-only · Human-in-the-loop
Prowlo never posts for you