I find hard to reconcile the idea of following your mates investments and the idea of do your own research.
In a winning spree it can feel great, but when prices start to fall without mercy I fear the chances of making self damaging decisions may be exacerbated with unrealized losses becoming realized ones because someone else did the same.
Also, both entry and exit points are different for different people, hence timing must be different too.
Making buy or sell decision based on what someone else did may not be totally bad if one understands the rationale behind it. If that’s not the case then I can’t think that’s something to be made available nor encouraged. If one doesn’t understand the reasons that led to a decision, then it shouldn’t copy that decision. Deciding to buy into an asset just because my mate just bought it isn’t a criteria I can classify as sound. And it seems to me that’s exactly what that sort of social feed encourages to do.
I personally prefer a community forum where each one decides what to share or reveal to the other members. And each one takes the full responsibility for the consequences of it’s own decisions, good or bad