It's funny how much demo requests have changed in the last 3 years...
It was just a simple IRC PM before, not much problems, most people gave it unless they had deleted it already, or truly cheated causing them to make an excuse. -- If it was suspicious, then further action was taken.
Then it moved into a forum post, which turned into: "POST ON FORUMS!!!!!!!!" to every hackusation. It lowered the amounts of requests, and usually only happened when people were truly serious about it.... but everyone posted the demo as soon as they saw the thread - or made up some huge excuse how they "deleted it" etc.. Worked pretty good, removed a lot of rage-requests.
And now, it's into posting times, and people still refuse to post their demo's..... but instead of some cool, creative excuse, it's just a simple: No thanks.
In this case, it's more experienced players refusing to give there demo. It takes no time at all to upload a demo, it clears the potential uncertainty (for the most part).... like... atmays you looked at the thread and responded, why didn't you just post it? What benefit did you gain from making a new, inexperienced player, have to make himself look retarded by continuing to reply? C'mon. Just give stuff over IRC, and let them post it publicly if they find it suspicious. Making it public has no gain. Even if it's a rage-request, it's usually from less-talented players, let them see how you play so they can improve.