Well, it's only rationale for someone to say he would upvote all his posts and comments with his voting power when he has so much to spare. But what's the actual use of your voting power if you can't use it to help the poor and needy and also put smiles on peoples faces.

I have been in a situation of serious need and was almost broke to the ground and just a few upvotes from people kept me going and so ofcoz if I have such power , I would do same for others.

The latest trend now is deligations. People get to deligate their SP to other communities and projects but I would advice that if only you do not have the time to be a human curator yourself. If the purpose is to help others then it's fine, but if it's just to get rewarded then...dunno what to say.