I agree with your point of view. I too, sometimes get bothered by the fact they say "thanks you" or some stupid spam shit and not contribute.
Although this also falls under the staff's privileges. I've seen site's (forums) which ban leechers or suspend their accounts for leeching and others that let the leeching happen. As well as OP, I leech when I feel the site isn't going anywhere or if the site doesn't have original content, which got elsewhere. Otherwise I contribute where ever possible (sometimes I don't although; because there are times I don't want my exploits or methods depreciated by others)
Although this also falls under the staff's privileges. I've seen site's (forums) which ban leechers or suspend their accounts for leeching and others that let the leeching happen. As well as OP, I leech when I feel the site isn't going anywhere or if the site doesn't have original content, which got elsewhere. Otherwise I contribute where ever possible (sometimes I don't although; because there are times I don't want my exploits or methods depreciated by others)