Yes, this is a good idea. In order to save the forum from these cheap advertisements, it’s better to impose a time limit that all the new users need to spend before posting any link. Alternatively, we can also add an exception that, if they buy a Copper membership, then they are allowed to post links. In this manner, these types of people who bait promote can be restricted, and people who wanted to start a serious discussion can really start rather than seeing a cheap gimmick of advertising.