Title: Fixing the forum
I, like many others, can't chance the avatar we have on the forum and even though it's a minor thing, we would like to have it taken care of.
You can check it for yourself by creating a new character, setting it to default on your profile and attempting to "save" the shot that'd be used for an icon, ergo my suggestion is to check the issue and take action.
I'm hoping this is a fair miss on your part, because if you've been aware of the problem and choosing to ignore it for months now, it shows plain disrespect for the player base you have. After all, if you can update the shop with various gear sets and loot boxes, how hard can it be to repair something that's been implemented since 2015?
Have a good day.