What reasons do you believe they are needed for?

I agree they are needed but only for downvoting stolen content, abusive behaviour to others on the platform and misinformation that could be harmful if people were to believe it.

I downvoted someone who stole my content on here, but I think that's it. I may have done the other two but I don't remember by now.

I don't believe in flagging people due to disagreement etc, but the reasons given above are reasons to downvote / flag. I'm not sure if we will agree on the reasons you feel it is needed or not, since I don't yet know what those reasons are.

Ganging up on someone and downvoting their every post and not giving them a chance to redeem themselves in your eyes for whatever pissed you off though is a shitty thing that people do on here though and I 100% disagree with that. Each post should be an individual post and someone's time on here shouldn't be completely ruined because of a mistake they made. That's shit.