Just downloaded a MaxBlogPress plugin. The problem isn't with the plugin. In fact it is a half-decent plugin. What MaxBlogPress does is require you to activate the plugin, but in a way unlike any other plugin.
After you click the button to activate the plugin you are sent a confirmation email. When you click the confirmation link you are taken to a high pressure sales letter.
Typically, I refuse signing up for 'newsletters' (that are really a sales message), but somehow ended up receiving the MaxBlogPress 'newsletter' anyway. After the first spam arrived I unsubscribed. Maybe that will put a stop to their 'newsletters'--we'll see.
I don't mind that developers ask for donations. After all they have worked hard and their contributions are valued. What I don't like is being confronted with high pressure sales pitches and 'newsletters' that are really spam.
Because of this developers high pressure sales tactics the plugin has been deleted.
Hopefully, WordPress agrees that this type of manipulation is unwelcome and MaxBlogPress high pressure sales tactics are unwanted in the WP community.