I swapped to imgur after Flickr sold out and started charging $50 a year
I just find imgur is really difficult to get the links on a phone. The app is fine for uploading, but getting the bbcode is a pain using a phone
I upload from my phone and open the gallery link on my laptop and then post. Not sure why we havn't solved this yet in 2022!
I did figure out a slightly annoying way using the phone this week:
Go to imgur on phone browser & request the desktop version
Open up: username.imgur.com/all/#1 (where your username replaces username)
There is a drop down box that says "view image info" - click on this and then "generate image links"
Tick the photos you want to share and then "done"
Then press link and then BBCode
I use the "huge thumbnail" size which is a good size for forums
You can also use the same link and method on the computer if you want to share multiple images at a time