The bugs people have found so far aren't exactly plainly obvious. I have yet to run into any of them in regular gameplay. FFS, some of you are acting like the bonus pack is entirely unplayable which is just ridiculous. You guys will find anything to complain about, won't you?
This is a usual thing I ran into after providing the community extra content. Don't worry, some posters really have to find something, collision being the most common thing. Things like "OMG my gunz disappear when I push my guy against the wall" is something I got too. But I read it for the lol.
Things like being able to walk where you shouldn't or go trough a mesh you shouldn't is good feedback, but this... just the usual stuff. Notice how the nicer the level is, the sillier the comments will be? Just make a really standard level, with a new account (So if say, you're Hourences, just not to get flamed for releasing a poor quality level with such a name) and see how the comments go well.
Or yet how a specific gametype gets it's own type of crowd. I noticed the VCTF community is quite more demanding than the DM one. You're also are dealing with a whole bunch of different kind of players.