Today I've checked all avatars.
The once that were to big in size / filesize have been removed.
On the old board pictures that were to big were automaticly resized.
This board doesn't have such an option, so all pictures showed up in their original size this was the main reason people were using pictures that were to big.
Max: 80x80 pixels.
Filesize: 100 KB ( this counts for avatar and signature images )