I can respect the people who, you know, actually were a part of the subculture, who use 1337. Or even younger people who do it well. It did have its purpose, just, people seem to forget that.....
Same, but if people are into that community (and the right time period people seem to forget that this isn't the 90s... oh wait, I might be guilty of that....) then it doesn't really bother me, in the appropriate time and place. But they have to at least do it well, and know the purpose....
I've seen uber-leet. It takes me a good amount of reads to understand it.
1337 is hard enough, depending on who's writing it. Uber-leet is unnecessary.
That post above, it took me 3 reads to remember that a pound sign can be used for 'l'. There are so many renditions of 1337, I don't even bother learning them all. >.<'