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,,,I find it difficult to understand all the hubbub on this topic. Surely the only people who really need to determine whether a fork/headtube on a bicycle is or is not bent are the owner ( who presumably might want to repair it ), or the buyer and the seller in a sales situation. I'm pretty sure all of those guys are going to have the bike to look at in person.
Arguing about whether or not you can determine the condition from a photo, or even several photos, is just a nonstarter for me. I'm pretty certain I can't do it reliably, unless the thing is pretty obviously whacked.
I guess not everyone dropping imaginary lines along a head tube down past the fork legs feels the same way, so by all means carry on.
