Great topic of discussion and the comments have been as good to read than your story. This is something I have debating myself as well. While I upvote my posts, I do not upvote my comments. However, I only post 3 times per week vs being very active on commenting on quality content. My view is that starting out, you should have the liberty to use your SP how you feel especially if it has come from your rewards and/or actual investment into STEEM. I think that was the purpose of the DPOS approach as it needs to incentivize people to have stakes on the blockchain. However, as influence rises, it should be more distributed instead on oneself.