what do you think about retaliation flags?

They will always be a problem to some extent, and they might get worse under the new proposal.

I think there should be an elected committee with lots of delegated SP (for example from Steemit, Inc.) to be able to discuss, decide about and counter abusive whale flags if necessary. Only then a downvote pool made sense in my opinion.

This is a good idea, and something I would support. The SPS could potentially fund such an organization if stakeholders viewed it as important enough to fund.