That is not the right approach, because Bitcointalk is the largest cryptocurrency community out there, with millions of users from all around the world. Without advertising here in Bitcointalk, none of the projects will be able to attract investment for their ICOs. Therefore it is very necessary for the projects to constantly update their ANN thread. Most of them do that, but once the ICO is over, many of these threads become deactive.
This is why I have argued that whatever funds these projects attract must be held in third party escrow, until the milestones are completed. The funds can be released in installment as per the progress made by the project. This will make sure that the developers don't run away with the funds from the investors, and they are made answerable to the users.