Same here, I don't know anyone who might send me an invite unfortunately. It's unlikely for this topic to come up organically in a conversation as in "hey by the way are you on lobste.rs" so my previous attempts were by sending messages in my company's notice board asking if someone is there. But in the last few years I have worked in smaller startups so the sample size is too small for this strategy to succeed.

What's up with Lobste.rs blocking the Brave browser? - https://news.ycombinator.com/item?id=42353473 (93 comments, and linking to https://lobste.rs/s/iopw1d/what_s_up_with_lobste_rs_blocking... which is about that, though if you browse with Brave you might have trouble with it)