You can't change youth ignorance or attitude, but how you deal with it and address it really reveals how good of a mentor or influence YOU are. Be more of an ambassador for offroad bikes instead of a internet forum soapbox blow hard. Throwing insults at someone because they don't know how to mod their airbox or because their post count is in single digits doesn't do anyone any good.
Well put Digital Soldier! Since we're playing true confessions I'm a 48 year old guy who has been on two wheels for over thirty years, although I just (very) recently got back in the dirt.
I think it's pretty safe to call it a fact that every generation feels that the preceding one is lazy, arrogant, ignorant, etc., etc., etc. This has been true for all of recorded history. One of the tests of the quality of our character is our willingness to take the generations following us (and people in general for that matter) as they are. With a few exceptions there is nothing wrong with them that a little life experience won't cure. Chastising them (as opposed to constructive advice) doesn't help the problem as Clark sees it, it just makes thing's worse.
Just another single digit posters $.02 worth.