I noted that my or others' questions (discussions, projects) and answers (comments, replies) receive recommendations by RG members, but I am very confused about the criteria that RG members use to do that.
To start the discussion, I will give my opinion.
There are several comments or answers given by interested RG members to a question or issue open for discussion in the RG social media.
In the answers made to my questions, I noted that several RG members giving their opinion about the question or any answer given precedently qualify the question in many ways, as for instance, interesting, worthwhile, valuable, etc. But, not all of them recommend the question or any precedent answer.
On the other side, there are several others that do not make any comment and recommend the question or any precedent answer given to it.