That Quora quote made me angry just reading it, I find it extremely superficial and condescending. Unfortunately, it seems like a good example of how some therapists think/work and relate to clients. I do think that the whole setting of therapy and how it is conducted can be manipulative and provoke clients to develop these feelings - quite a few people spoke about experiences like that here on PC. I personally decided not to buy into it and fall into that trap, and my psychoanalyst called that resistance, in a negative way. He also tended to interpret almost every negative reaction to him transference, even when it was clearly specifically a response to his wrongdoings, just to avoid taking responsibility.

On the question of sharing transference feelings with the T or not - my view is that it may be useful to first think carefully what one might want to achieve sharing it. What could be the possible benefits. If it is not easy to come up with potential positive outcomes, and especially if the client has strong reservations, I would think twice before sharing anything. Especially if you know the T thinks like the one quoted in the OP. S/he even contradicts their own post: "Thirdly, issues of your treatment should be addressed in your sessions, and in your sessions only - not here with random unpaid strangers…" Why does s/he talk about it in a public forum then?