Hmm. I've been a member of some really harsh in-person critique groups, where people have actually indulged in the odd bit of pugilism (comes from meeting in bars I think). Not as bad here usually. I only crit a few people though, except in the LM. Like G said above, I've never turned down a crit (within reason-I've been asked a few times to crit fellow contestants while the contest was ongoing)...but I don't go out and look to do it.
As a critic, I appreciate when the writer has an idea of what they'd like looked at. Only if it irks me will I crit the spelling/grammar. I prefer an overview and generally look at tone and plot, character definition, stuff like that.
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