The people ripping into Derek Murphy or "tattletales" in general may not be his past or potential victims, but they're either incredibly stupid or at some level as morally compromised as the people who do cheat.
Try to think here. The threads about people getting busted for skullduggery are the most popular running-related topics on the whole board (not even including the Rossi one, which is on its own planet in both tawdriness and popularity). They blow up immediately even when few people have even heard of the perp, which is almost always the case since even the illegitimate times are fairly pedestrian, like Kip Litton's).
Why aren't these same idiots complaining about WADA and USADA? Don't those losers have better things to do than expose cheaters? They must just be in it for the money! What douchebags!
I wouldn't give a rat's ass if Derek -- and I don't know him at all -- lived in his mom's garage and did nothing but surf the Internet all day looking for runners to bust, living on PayPal handouts and SSDI income. To malign his efforts for any reason is inane. If he were making mistakes left and right or obviously looking to target people who hadn't done anything, then obviously he'd be in dickhead territory. But chances are pretty good that even if he were that kind of guy, he'd take pains to avoid doing things that would get him sued or would have been sued already.
Seriously, it's one thing to complain about cops overreaching their authority or abusive teachers or whatever. But this? Have some perspective. And if Kelly Agnew is behind any of the sniping, shame on him too...and what did he actually doo in his life before he started running? Anyone even know? Or was he like Jesus and just kind of showed up in his 30s after going off the grid at age 12?