Imgur continues to work fine for me and has done since Photobucket shot themselves in the foot.
I have their Android app on both phone and tablet. All that is required is to take a photo or use an existing one. Whilst viewing it I tap on share, tap on Imgur option then tap to upload. Takes about 3 seconds. Tapping on uploaded image within app gives a direct image URL copy option, ready to paste on forum between image tags. I stay logged in to app so it's always instantly available.
There are versions for Apple and Windows devices, and it's free with no intrusive advertising
