I think the likely outcome is you and I disagree what the problem with social media is in this context. You are sold there is no problem so long as some valid p

I think the likely outcome is you and I disagree what the problem with social media is in this context. You are sold there is no problem so long as some valid posts exist (i.e. so long as you can eventually extract something) and me/the author seem to be sold the problem is the loudness of invalid posts (i.e. if you can filter the social media posts accurately then you already have the tools to evaluate the design more directly for less work). No amount of showing how select posts can be useful is going to impact my perception and no amount of talking about invalid posts is going to impact your perception.