On two different questions about module X for a specific framework, a user replied saying to use instead the module Y, which turned out to be developed by him.
On the first question, he first added a comment suggesting to use module Y, and when the OP commented back that he would like to a give a hint on how to use module Y, he added an answer saying how to do what asked by the OP using the module Y, and not the module X that the OP already installed. On the second question, the same user was wondering why he could not see an option in the setting page for the module X, and the other user once again suggested to use the module he developed, without to even check if what reported from the OP was correct; I verified the option the OP was looking for was present, and concluded it was just a problem with the module version used by the OP.
Considering that module Y is not necessary, and it is probably not the recommendation that should be given to who is already using the other module (which has the same purpose, and it is better known), what should be done with both the answers? Should they be converted in comments to the questions? Should it be done just for one of the questions, considering that both the questions were asked by the same user?
Both the modules are licensed under GPL v2; it's not a case of promoting something that would return money to the author, if not indirectly. (The more users use his module, the more users will know his work, and probably ask him to develop a custom module for them.)