hm... is it too painful to receive bots reply? I can set it again to response just on requests, but usage will drop down, you should teach people how to use it...
You want the usage to stay up? Why? And if so, why not include more cases of use that make sense? Or change the declared function of "ask" to "mention".
also, bot works with profit, likes shows that people support it and keep alive even if not replied unexpectedly, so maybe it's not annoying? It's like public good :)
Which is why I've gone with the common phrases people use to ask about the bitcoin cash price. No need to keep commands in mind. Just use it like you would Google. But just BCH price.