Define leeching?

leeching: a person who clings to another for personal gain, especially without giving anything in return.

Basically if you just cling onto someone's post and just want that thing, then you try everything to get it, and when you do get it, you tell everything else off. Until you find another thing you want. And you don't even contribute to the community to get that thing.

Holy crap my spelling errors are on key now.