The future is really uncertain and everyone surely has what they are going through be it electrity bill, mine and what have you, selfishness is good, reason people actually put in a lot of money into this system and what they are after is How to make profit. But the profit can be make in so many ways, be it self voting or through curation rewards, now the idea of bots coming in place actually limits curation reward lets take this instance.

You delegate SP to 4 different users and each of them upvote post say 15 each daily,automatically you are getting curation reward from 60 different post with respect to how much VP was used in voting those post and to ensure you get maximum curation reward they would probably upvote 30mins later or so.

Now lets look at bots, you only get reward when a user desires to use it, probably send you 4sbd and the curration reward probably nothing cause if a post is upvoted within the first 10mins you know the rest.

Every investor goes into business to make profit and nothing else but then the best profit I think is when you help others and thesame time get rewarded for it.