What indication do you have that such a policy is even remotely in use at Airbnb or another company?
Nobody writes their spam detection algorithm as policy, but there is also no evidence whatsoever that social media presence was in any way shape or form used to make the decision here. Airbnb at no point mentioned it, nor would it have been something that crossed your mind if original commenter didn't mention it as a fact about themselves.
I'm not arguing that Airbnb does use presence/lack of social to make a decision here. I just objected to you saying
> Since when is a social media account required to do online business?
I interpreted that as you being outraged that Airbnb requires some form of social presence to do business. I felt you were exaggerating and responded by saying its just about the review. I meant that even _if_ Airbnb is checking this, it's not a big deal cause this is just one of many signals that could feed into spam detection and we're only talking about the _review_ not the ability to use Airbnb at all.
You raised a valid point earlier, I doubt they're actually checking this, my point is just that even if they are, who cares. OP looks suspicious by having no online presence at all and only one stay on Airbnb. That combined with the language in their review probably tipped the spam filters to say "hey it's probably safer if we don't let this review through, doesn't seem legit"
Nobody writes their spam detection algorithm as policy, but there is also no evidence whatsoever that social media presence was in any way shape or form used to make the decision here. Airbnb at no point mentioned it, nor would it have been something that crossed your mind if original commenter didn't mention it as a fact about themselves.