Found it! There was one query causing a lot of the trouble over the past few days. It's been removed and should provide a much smoother browsing experience. It's frustrating that one query on an older feature can cause problems like this, but that's computers :/

And while I agree that Subeta has above average lag and downtime (although significantly less over the past year) i'd like to point out that there isn't a single site that can claim 100% uptime, and even less than can claim no lag. Giant sites like reddit and facebook still have lag and downtime. That's not an excuse, it's just pointing out that when you're working with thousands of moving parts (We might upgrade our web server software and introduce a new PHP bug that is only affected by that version) that don't even necessarily have to do with Subeta.

Anyway: This particular problem is solved, on to a (hopefully) faster and downtimeless Vesnali!