They were "active" at least as of 4 days ago, though before that one post their previous post is almost a month old, and they haven't left a comment in 6 months, so it's doubtful that they're active as a mod.
You're probably best off going to !firefox which seems more active.
Has this sub (or whatever it's called on Lemmy) been hacked? ( lemmy.kde.social )
All I see is crypto bullshit scam posts