Whats the word for.....

[Terranosaurus]

Know I know that theres various terms for stuff on forums like trolling etc but is there a term for the people who can't be bothered (or aren't able) to read a thread and so post either complete nonsense or repeat something that was posted on one of the first replies, or simply miss the whole point of how the thread has developed and post something quite pointless.

[Evilgoat]

I Think Trolling covers a lot of that :)

[generation-x]

lazy??

[Drift]

Forgetful  :?

[hobbit]

"Dont know what the search function key is" :)

[Range Rover Blues]

Victim of a thread that's been going on way too long now.