Good questions

1. I just delegated to people that I noticed being active in curation and engagement on POB. I liked to see people voting on lots of post made on proofofbrain.io and engaging meaningfully. It was very subjective and I have never set specific criteria.
2. I would like to make more delegations so maybe it would be a good idea to set some criteria. I preferred to just support people who were acting on their own accord but maybe it would be better to add structure so everyone is aware of how to take advantage of the opportunity.
3. I don't like having a much bigger upvote than everyone else. I think decentralizing the curation is very important and that was my main goal in the delegations that I made.

The delegations that I made have remained in place.

I am considering having a contest to award more delegations and in that way I could set some criteria about the curation and engagement and make it where people could show their efforts so far and how a delegation to them would help the platform.