Maybe you're right, but in this case I think the problem is different. Do you know what size the BestChange avatar file I'm using is? It's only 16kb, but if I host the image using imgbb then the image is invalid ^{[proxi invalid image].} So the problem is not all about the image size, but the problem is with the image hosting site imgbb which may not work well in furum now. But when I use imgur and postimage, the images are hosting well because so far both sites are working fine.

Here is an example when I posted an avatar image that was 16kb in size but using a different image hosting site.

1. ImgBB


2. Imgur


3. Postimage


So the issue being discussed now doesn't seem to be about image size, but about what happens to an image hosting site ^[imgBB] that doesn't work on forum when posting image ^{[new image or old image that have been posted].}