They do, but it's important to realize here that there is, in fact, a small demographic who actually want to get that political spam. So messages like that are going to get through the automated spam filter.
I suppose they could bundle a more advanced rules-based system, but since there's an API for user apps to do it, why not leave the job up to them?
I suppose they could bundle a more advanced rules-based system, but since there's an API for user apps to do it, why not leave the job up to them?