Thanks for adding your position on 2FA. I also mentioned captchas. I expect the concerns you have over them are of similar effect as 2FA.

I also think that I am not the best mind to examine this issue, and that it is something of great import to the community.

Perhaps there might some useful response from the community to a request for input regarding bots, and means of restricting, reducing, or reasons not to do either, from Stinc.

Also, I've never received any comment regarding the vulnerability of the witnesses to economic Sybil attack. Does Stinc have a position on this matter?

Thanks for your measured and substantive response!