That's strange indeed... especially since the IvPBot-Forum is quite a busy place and people here seem very interested in the bot - E[POD]Bot, for example, has much less visits, but its creators semm to continue with equal motivation - and that's good!
But I guess that's always the problem with bots that are not programmed by a software company member for $$$ and because his boss tells him to, but by some private person for sheer interest and maybe some reputation in the scene... once this interest gets lost, the bot is lost, no matter how much potential it shows... see POXBot.
I sure hope this is just a creative break or something similar. It would be very sad to lose a "family member" this way...
Maybe, if he has lost his interest in the bot, he can find a kind of solution similar to what happened with PB 2.6mm?