You Search Engine, use the Muppet?

Take the helmet threads... Come on, ANY of them. How many useful posts do you reckon there are as a percentage of total posts? Because you can post pictures on this forum (which many don't let you do, you can only post links), it means that all threads about helmets descend into 5 pages of people posting the most outrageous pics of helmets they can find. You KNOW what I'm talking about...

Guilty :(

My thoughts:
If...
Starting a new thread about a previously coved subject = bad;
Digging up a acient thread = bad; and
derailing/hijacking existing threads = bad
...then how the hell do people ask a question without being flamed?