Hello, I’ve found the same question in the history but the user didn’t get any answer … I created my account in 2021, and I’m getting a message saying “upload file not available for new users” : is this a bug, or something like a setting I’m not familiar with ? Thanks for your help
Lookin at the FAQ..
FAQ 12: Why can I only upload one image?
FAQ 20: Trust Levels
Ohh and in fact the limit of 5MB is mentioned.. here:
You seems to be no “new user” anymore but “basic user” so you should be able to do so if respecting those “limits”.. ( maybe you was just recently advanced to basic because your activity shows only 11 days visited in the last 4 years ??)
..and uploaded videos are only directly embedded if being mp4. For images i do not know some format limits.. but png and jpg (used myself) (and animated gifs ← have only seen this) work..
Thanks Okidoki for your answer, sorry the answers where there in the FAQs and I didn’t see them … Thank you!
Don’t be sorry for this… i “only knew” because i simple do not know how to log-out… and read so much… 
…also i added this: