You're missing the point. If only bots are playing, the coin has no value. And right now, every day it's getting more difficult for "human" players to mine coins. In my case for example, I haven't actually made any coins for about a week because I keep losing hunters so I'm barely keeping even.
bot's aren't free, they have to pay for every player as "human players" do, so i don't agree about that
and watching (not much because i'm mainly on testnet to go on with my client) how bots behave, i think that often they pay an high fee to move on next block, so if someone come out with an "antibot bot", it will be more expensive for the bot owner
Of course i hope human players will keep playing the game because i'm doing my client for them and not for bot, but in future i want to add bot programming inside my client, because i believe that it's a scenario that huc players have to deal with