I have used this hack with no problems on about 6 different sites... So please don't tell me that there are problems, cause there aren't...

Okay, but can I ask you this: did you actually try it with the two hacks I mentioned above? Because it's completely reproducible here.

No, this hack is not intended for use with any similar hacks...

I don't understand what you mean by this. I don't have any similar hacks installed.

The hacks I referenced in my bug report are Dynamically Create Amazon links and Currently Active Users' Avatar.

Are those considered "similar?"

No. But since these hacks have nothing to do with plugin display, they cannot create problems.

Okay, let me rephrase.

Without your hack installed, "Convert Amazon Links" appears in my standard plugin manager. I can turn it off and on again, as usual.

With your hack installed, "Convert Amazon Links" disappears from my list of plugins. So I can't toggle it on or off.

So it's not that these hacks are "creating problems" but rather there's something different about them that causes them to not be recognized by APM.

I'm not sure if there are other hacks that are affected this way, as I run extremely few on my site.

Do you have the last version of this hack installed?

Yes, I just tried it again this morning.

Ok... The reason is a malformed plugin XML of those plugins. It's fixed now, however. Update the php file.
(idk, who writes plugin xml by hand? seems like the authors of those hacks did).

How in the hell do I uninstall yours? I tried the above and it didn't work.