I am beginning to get numerous "requests" for chats that are really commercial advertisements. Most (maybe all) come from China. I do not use "skype me", I have my privacy setting so that I'm visible only to my contacts.
There is no way to block requests, and maybe there shouldn't be. But surely there is some way for Skype to block blanket "requests" to the entire planet. I know I can refuse them and block the user, but I am doing that an awful lot and it's getting to be a real nuisance, especially on my Skype phone where I have to press three buttons to do so. In the process of blocking them, I've already read their advertisement whether I want to or not, and that's all they care about.
Email spam started out small, it's time to nip this in the bud and it shouldn't be all that hard.