but why should I be glad somebody is writing games in Blitz or my aunt Nelly's gibberish cipher?
It comes back to what Flameduck was saying a few days ago about the "sense of community".
or if you're more mercenary :
More games sold, more exposure of the language.
More exposure of the language, more potential sales.
More potential sales, more chance of development and continued support.
.
Not always the case but can't hurt.
p.s. As for the question of 'begging' I don't see the difference between this approach and others. In fact, for those interested in the games, it's 70% just for visiting the Blitz Forums.