We've been over this before and the general consensus is that it is annoying as hell. I too think that one line, CAPPED thread starters with 1-5 posts or so should get warned or told off, it really lends little creedence to both the site and the user him/herself.
I don't so much mind the language though, there are precious few in here who write perfect english, native speakers included, so picking on that would entail a 99% drop-off in users...