As with many other subreddits, /r/LegalAdviceUK (which had been dark since the start of the blackout) has been sent a thinly-veiled threat by Reddit.
So they’ve reopened in order to start moving the entire community of 810,000 subscribers to somewhere else.
As you can imagine there are a number of legal professionals who moderate that sub, and they really don’t take kindly to being threatened. They sign off their reopening message with “Fuck /u/Spez and long live John Oliver.” but for the real fun you might want to look up a very famous British legal case they reference, Arkell v Pressdram 1971.
On top of the other replies, here is a short and simple video explaining the basic concept behind the fediverse (which is the umbrella term used to describe the network which Lemmy and kbin instances are part of)
https://framatube.org/w/9dRFC6Ya11NCVeYKn8ZhiD?start=1m37s
PS: The link above is to a Peertube instance, which is the fediverse alternative for YouTube.
@LollerCorleone Much appreciated, thank you!