It makes sense if some really think that the only way to get merit is to open a new thread, but I personally did not get that impression. Given the conditions you set, I'm not surprised that there aren't many qualified ones - because I overlooked that when I answered the user CaCO3. The idea of someone explaining why their post needs to get merit and even number of merits can be interpreted in a completely wrong way in the sense that someone demands something and evaluates himself for a reward.