First of all, L4s (sorry misspelled in titel) is not a real user, so no harm done here.
It’s an automatic bot xposting from reddit, making this community just as bad as r/technology, which kind frankly only revolves around politics and social media platforms.
I’ve had the user blocked 2 weeks now, and this community is muuuuch more enjoyable and is actually about technology now.
Just wanted to share a positive experience.
In your account settings, uncheck “Show Bot Posts”.
The one annoying thing is that if a bot replies to you (particularly the PeerTube bot) it can be tricky to clear the notification. There’s no clear all button on the website, but there is in Jerboa.