One of the major "free" image hosters has recently taken down millions of image links from forums of all sorts, making valuable old threads unreadable.
There now exist many forums where you can just upload your images to the posting you are editing, and then you can use them right there, as they are hosted along with all the other forum content. That would be a cool feature to have, and one that is sorely missed in another place where they speak about TCs. It makes posting pictures so much easier.
Also, everything needs to be mobile enabled these days. If it only works on the big screen, you lose lots of interest.
If the new forum could do this, which is really state-of-the-art out there, it might attract more traffic.