Some quick feedback on the feedback. Seems like a few things have changed since.
Agree with the following:
WYSIWYG controls look very dated and out of place with the rest of the site.
WoWAce page header indeed a bit big, especially considering the one on the CurseForge site was made to fit neatly in the main navigation bar.
'About this project' not very interesting and should probbly not be on top.
Icons for categories not very obvious/useful.
Too much overhead on individual file page. All those details should be in a box like 'About this project' if anything. No reason change log should be scrollable in its own box.
Need ability to set default image and image order.
Need quick edit for localisation. (also on invidual phrase pages)
Client exlusions. I also cannot tell what purpose these are supposed to serve.
Do not agree with font size. I understand that you have eyesight issues, but I absolutely don't think this is unacceptably small. Not sure if we're looking at different texts, or using very different settings (I use 100% scale and font size 16 in browser settings, but I don't think the latter affects this?), but eg the main text on addon description pages and in these forum posts seem perfectly reasonable to me.
I'll add a quick point of my own, that I think I may have mentioned before. The click box of navigation menu items is annoyingly small and only barely covers the text. That's for the project menus and sub menus. The main site navigation menu has done it right.