I've simply been using Imageshack forever. They've gone to shit adding features I don't give a single fuck for, forced users onto accounts, and it looks like I'm on a "free trial" that'll run out in 3 weeks now. God knows what happens when that runs out, I suspect every image I have up will be blocked behind a paywall...
All I want is a plain old host that'll take a picture, give me a thumbnail, and let me post that thumbnail publicly. Imageshack hasn't even done that in a few years, I've been manually editing urls to get that effect...