Tags on the forums trust network are intended for trace. If someone offers a service that is misleading they are warranted for a neutral tag in my opinion. If they scam you, it's a red trust rating for them for sure.

But remember trust isn't regulated so if you feel like someone deserves a comment on their trust page for whatever reason, nobody can do anything. You can go right ahead and tag them. Someone simply being uneducated in trading principles is pretty pedestrian conversation though. It's also their right to be dumb. Does that negste their chances of being a honest trader? Dumb people can actually be very kindhearted aside of their beliefs.

Ultimately it's entirely up to you. I personally wouldn't tag anyone for having a bad take unless they're marketing somethin misleading along with their take. But you're free to do it if you feel like tagging is warranted.