The flaw in your logic here is I know my snizzle but don't post much. Does that mean I'm not trustworthy?
no. but by that same metric someone with only a single post isn't necessarily not to be trusted. on a technical level the fact that a moderator is a moderator does not mean that they should be trusted to provide technical advise.
and it's a sad fact that the old rep system was more a measure of how much a person was liked more than what they knew.
there has to be some kind of scale, and crude as it is, this tanks system is probably the one that'll end up being used.
besides, it's also the case that whilst you do not post here much, what you do say tends to be insightful. so you'd have disproportionately high thanks for the amount of posts you made.
so a new member with 10 posts and 10 thanks is probably a good indication that they can be trusted.
on the other hand a member with a million posts, but no thanks is probably a good indicator that either member does not usually help people out, or does not usually give good/correct advice.
(though admittedly that does rather mean that there is a problem for existing members with high posts counts who will all start out with no thanks messages.)
on the other hand, like I've said many times before, if you can get rep/tanks from anywhere, then what's the point? the fact that I could get more rep from a post in the social lounge for making a joke, than I could get in the hardware section where simple advice might save someone hours of time and hundreds of dollars made the whole system a bit useless for judging peoples ability for giving technical advice.