For those that run Mybb and want an automatted revenue stream you might want to look into this new plugin: Mybb Paypal IPN It's very easy to setup and works very well. It's similar to the VB subscription where a subscriber will get auto added to a group of your choosing. More details at the site.
Great plugin. I will try that on one of my MyBB forums. But i think,it crashes with old versions. Is it so?? I had tried something some days before,but i failed..
If you need MYBB assistance let me know. My rates are very reasonable. As for crashing on old versions..hmm...how old? The plugin doesn't require any template changes and most of the variables and classes used have been the same since 1.1x. You can certainly give it a shot.