Depends entirely on how much you give a damn about it. The idea is that if someone does something or posts something that is either benefitial for the community or fits into your opinion you give that person + Rep, if someone does the opposite you give - Rep. Essentialy someone with tons of + Rep should be someone well liked by the community and / or puts some work into the community, someone with tons of - Rep is often a Spammer, overall dumb idiot that annoys people, tries to hurt the community with intention or tries way too hard to be edgy by having opinions that should be deserving of at least a good, hard punch into the face.