As I understand, direct advertising is not allowed here. Still, we’d like to become part of this forum community, just as Dave did. He also faced a lot of criticism at first, but over time, he managed to establish himself here.
AFAIK, if you spam your service link on your post or make multiple threads talking about it, then that's just spam. I don't think anyone would put you on the ignore list if you put an ad on your signature space, which is basically what most services do here.