There are a lot of people out there that are running blogs, but not all of these people are as successful as you might think they are. Indeed, many of them are actually doing this as a way to pass the time because of the fact that they are not quite as serious about this sort of thing as you might be. If you are serious, though, you need to start thinking about how you are going to manage your blog in a way that would ensure that people would come to it in order to see what you have to say.
If you want people to come to your blogs, one thing that you might want to look into is email marketing. This can give people a reason to come and visit your WordPress.com blog and see what you have to offer, but you need a client or a software of some sort that would allow you to look into the wide variety of ways in which you can potentially draw people in to see your blog and take it as seriously as possible.
MailChimp is a good option to look into in this regard but there are a lot of problems associated with this platform as well. If you truly want to be able to succeed in bringing people to your blog you are going to have to look into alternatives that would be a lot better at handling the type of email marketing that you want to do. After all, not everyone is out there looking for the exact same solutions. There are actually quite a few people that are trying to do the best they can in a way that is less invasive than MailChimp tends to be, and these are the platforms that you should be going for.