I think its would be fun to see when we copy some trades of someone whos been into it successfully and suddenly mess things up. Will be ever blame him?
I don't think someone will purposely mess it. Yes. Auto follow would be a good feature.
I would add that the effect of social interactions make people who want to be followed and gain the trust of the community to share more and more to build that trust and communicate honesty. It is very hard to build a reliable and trustworthy social profile, people spend years doing so.