I like small tools which have one single purpose, I really do. Sometimes, when on IRC, I just want to quickly share a (non-sensitive) picture with absolutely no expectation with regards to security, retention, whatever. Imgur is good enough for that purpose and to upload images I just picked the simplest I could find; imgur.sh.

Example session:

$ imgur cat2.jpeg
https://i.imgur.com/R2g0ohx.jpg
Delete page: https://imgur.com/delete/...[redacted]...

Picture of a sleeping cat