@SuperSupermario24
No, they’re just the most prominent. Avatar changes and user links also take a short while to propagate.
The site caches profile information, since that is pretty static - your avatar, about me section, badges, user links, etc all do not change very often, so there’s no need for the site to query the database every single time it needs information from your profile. So instead, the site queries cache for profile information, and if the cache doesn’t have that information, or if it’s past its expiration time, then it queries the database.
It may not seem too obvious, but this site is heavily built for performance and optimization. Byte focuses on this especially, I’ve seen numerous cases where he’s rewritten entire modules just to shave off 1/20th of a second from rendering/loading times. I mean, Derpibooru is the largest site (by traffic) in the pony fandom, with some 60,000 unique visitors a day and 4TB of overall transfer (between the server and CDN). Yet we’re running on a single mid-range server (32 cores, 128GB RAM - something you’d find a small business running VMWare on), and it’s humming along comfortably at only 25% CPU and 15% memory utilization.