Do they achieve anything? If I see a very long thread which I am not already on I am sometimes put off reading all of it so I don't! Therefore I don't post on it (unless I quickly state I haven't read but think that was only once). If I have been on a thread but feel it has all been said I just stop reading it.
Is it that I am lazy or just got better things to do? (going to hide)
Funny/amusing thread are of course different.
49,000 migrants invade Spanish enclave in 24 hours
Who is the greatest tv quiz show host ever?


It combats a moment of boredom

....