Quarantined Subreddits (Reddit)
Quarantined subreddits on Reddit are subs which are deemed controversial by the Reddit admins. These subs are usually on a thin line of being banned entirely. Subs which are quarantined are treated differently from your average sub. The following differences are listed below.
Quarantined subs do not appear on r/all or r/popular.
The subscriber count is hidden from view.
You cannot access quarantined subs through mobile or the Reddit app.
A warning displays every time you attempt to access the subreddit.
You cannot subscribe to the subreddit through normal means.
Please refer to Banned From Reddit for a list of these subs.
revision by HorseMeat— view source