Still hosting TS as the primary place my friends record things because of the audio quality and especially reliability compared to Discord, but not so much for hangouts anymore. Got Mumble in the back pocket in case the licensing goes to crap though
Running it in a test environment and then not having users test (vendor upgrade, in-house internal-facing app, or integration), and then being ordered to put it in prod, then people start mentioning the things they should've been mentioning all along. Can't blame them, as our timelines are short and every department is overworked and varying degrees of being understaffed.
Of course I have one or two other accounts, but I personally like Lemmy.world. They serve as a necessary stress test that shows the devs and admins how to optimize further, and I just like learning admin practices at this scale of a userbase from a work perspective. Plus I don't want to be on an instance so small they can't or don't know how to handle compliance stuff and evaporate if something like that comes up. Not saying I know how to handle all of those situations, that's the job of someone else at work.