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r/skeptic

A sub for "scientific skepticism." Scientific Skepticism is about combining knowledge of science, philosophy, and critical thinking with careful analysis to help identify flawed reasoning and deception. Founded 2008 · 352.4K members

352.9K members. The best post we have captured here reached 78.7K upvotes, which works out to 223 per 1,000 members.

223peak upvotes per 1,000 members
352.9Kmembers
78.7Kbest post
11.3Kmost comments
103posts we track

Open r/skeptic on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

74% 9% 8%
Link 74% Image 9% Text 8% Video 6% Gallery 2% Question 2%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

⚠ Editorialized Title 8 🚑 Medicine 6 💉 Vaccines 5 🤦‍♂️ Denialism 5 👾 Invaded 3 ⭕ Revisited Content 3 💩 Misinformation 3 🔈podcast/vlog 2 😁 Humor & Satire 2 🤘 Meta 2

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

During his speech, Trump claimed that $8m was used to make mice transgender because he doesn't know what transgenic means

↑ 78.7K 💬 2.8K link 2025

JD Vance’s 12-year-old relative denied heart transplant because she is unvaccinated 'for religious reasons'

↑ 66.4K 💬 6.8K link 2025

RFK Jr. urges people to get the MMR vaccine amid deadly Texas outbreak

↑ 49.4K 💬 4.6K link 2025

Very chilling illegal actions by Elon Musk. Is this what the future looks like in Trumps America?

↑ 43.2K 💬 2.8K image 2025

Trump's 'Transgender' Mice Experiments Were Cancer and Asthma Research

↑ 40.3K 💬 956 link 2025

Newborn dies after mother drinks raw milk during pregnancy | Raw milk is promoted by anti-vaccine Health Secretary Kennedy.

↑ 38.7K 💬 1.5K link 2026

Oh boy…

↑ 35.9K 💬 9.4K image 2025

After years of incessant crying over “corruption” in Biden’s administration, it looks like MAGA has done a complete 180 and is now okay with real, bl…

↑ 35.7K 💬 1.1K text 2025

Zelensky thanked US 33 times for help during war with Russia, fact checker finds

↑ 35K 💬 538 link 2025

Every Surgeon General since GWH Bush was president signs letter warning that RFK junior is endangering the United Staes and the world with anti-scien…

↑ 33.7K 💬 672 text 2025

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/skeptic, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

What is r/skeptic?
r/skeptic describes itself this way: A sub for "scientific skepticism." Scientific Skepticism is about combining knowledge of science, philosophy, and critical thinking with careful analysis to help identify flawed reasoning and deception. It was founded in 2008 and has 352.4K members.
How many members does r/skeptic have?
r/skeptic has about 352.9K members. ViralHunt has tracked 103 of its posts; the biggest reached 78.7K upvotes, which is 223 per 1,000 members.
What is the most viral post on r/skeptic?
"During his speech, Trump claimed that $8m was used to make mice transgender because he doesn't know what transgenic means" reached 78.7K upvotes and 2.8K comments in 2025, the highest score among the posts we hold from r/skeptic.
What subreddits are similar to r/skeptic?
Communities of a comparable size we track: r/Trumpvirus, r/alaska, r/Louisiana, r/popculture, r/Antimoneymemes, r/BlueskySkeets.
What kind of posts do best on r/skeptic?
Of the posts we hold, 74% are link posts and 9% are image posts.
When is the best time to post on r/skeptic?
Across 103 timestamped posts we hold, the slots whose posts averaged the highest score are Thursday at 15:00 UTC (26.6K avg upvotes), Wednesday at 14:00 UTC (19.3K avg upvotes), Thursday at 12:00 UTC (18.8K avg upvotes). The busiest day is Thursday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/skeptic?
The 20th-best post we hold from r/skeptic has 23.5K upvotes, so that is roughly the bar for the top twenty. We captured 2 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

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Every figure here is what ViralHunt has captured from r/skeptic, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.