Incomprehensibilities

Faced with the following obscenities Habr.
- icon "join the blog"
located in FF 1.5.0.12 (+ Adblock + Google Note for FF) not on the right as stated on the page , and absolutely even from below, like, for example, here
- in the same FF 1.5.0.12, when leaving a comment, links are added to add a comment (related to karma, of course), however, when you re-enter the page, these links appear.
- when leaving a comment in the topic above the norm (and this, for example, happens to new users like me), the message that your karma is less than ours is displayed at the bottom of the screen, to which you still need to read. The text of the commentary is apparently sent to Hades for prevention.

UPD: unfortunately, because of the difference in the speed of time from the Habr universe, he believes that five minutes have not passed and therefore I cannot leave an answer to my first commentator - I have to go here. The remark is fair. Even more, if you simply change the width of the screen to a slightly smaller one, this icon disappears altogether. Presumably, this is a test for quick-wittedness - I did not realize where that => we do not need non-observant =)