Fair enough, but I don't think using the forum somehow commits you to reporting every encounter you have with an SP. I haven't posted many reviews, granted, but I'm still probably a net contributor. Not through any virtue on my part, but because I'm mostly restricted to Ayrshire these days, and there's bugger all recent reviews of the limited SPs that are down here...so I don't "take" that much either.
I'd definitely review any encounter that involved B&S, junkie, RIP-off etc. Anything else would depend on whether it was a well reviewed SP, a difference of opinion on an SP from the consensus, and tbh, if I can be arsed typing it on a phone keyboard.
In the case of Erin, yeah, I didn't review her out of self-interest...but this forum is largely made up of men who pay money (that could be dropping the mortgage or going into the kid's college fund) to cheat on a partner - I doubt I'm the only selfish, immoral bastard on here?!