excellent thread bango thumbs up
loving every cliches posted... as well as the opinions of the members 
i would like to add some related to pictures...
posting a lot of pics without getting rid of the ones that are absolutely not viewable due to blur etc
Next is when members post 180 or 90 degree rotated photos
Posting a picture of some written information where the information is ALL white due to flash and nothing is readable or viewable 
One thing that may or may not be classified as cliche but is hell annoying is when someone posts huge number of pictures in the thread opening post knowing that it will open up every time any page of that thread will be opened. (i personally think mods should make a rule that when huge number of pictures are to be posted they should be posted in the #2 post.)