GD, sentiment by a few rambling posters can affect the mood for a stock if they are left unchallenged and don't match market conditions. 80% of those ramblers own this stock according to registers. There were well over 100000 plus views of posts back here a few years ago.
I also follow American stocks where Bloomberg have had a 'ramblers' algorithm, since 2014, tracing sentiment based on SM posts which clearly effect the share price.
So yes, I do believe SM influencers' positive or negative' can influence buying decisions. People just need to do their own DD before believing any commentary. It is and has been on the bottom of my posts, in my signature, for a long time now.