I'm so excited!
I've nearly finished my best plugin ever (that was not as hard as it would be for other guys around, here)!
I've discovered that there is a hide/unhide categories feature and thought that would nuke my ExcludeCategories plugin but than I found out that this feature is really clumsy: you can only find it if you look at /categories (which I hardly ever look at) and it does not behave as I would expect it. There is a filter to show the followed categories. But if you have hidden a category, it will stay hidden in the discussions even if you set that filter to "view all"...
Well, I've cloned the categories module (which gave me a hard time), added some option menus to it (thanks to peregrine) and now it is categoriesmenuonspeedwithmorebellsandwhistlesthanyoueverexpected.
Only bad thing by now is the name: CategoriesModulePlusModule is ridiculous. I'll rename it and I will call it AdvancedCategoriesModule. But I have no time for that now and I do not know when I will have that time. There is a minor UI glitch and a not implemented UX enhancement but beside of that it should be pretty complete.
(Yes for sure, I could have packed it up to be clean and upload it as you would normally do, but I'm boasting of pride and can't wait any more to show it!)
Because I do not want to clutter the addons section I just attach it here.
Oops... no Zips allowed here. I have renamed it to pdf.
... so excited...