Some issues I've noticed with this idle game. Though, there is a chance that some of what I've said has already been stated.
For an idle game, this flash game generates a lot of lag when I get to mid/late game. Other idle games I've done stuff in, flash and otherwise, have not caused this much lag. I noticed it when I went to browse stuff on the side, and the webpages took much longer to load or responded in odd ways; as in, looks as if there was some screen tarring in the browser.
I also have a suggestion. Perhaps upon getting past the 10k mark, have BTC/min and current amount of BTC displayed as something like 100k, like with everything else in the game?
Otherwise, this game is not bad. Find the theme of computers with power A.I. upon it somewhat amusing. Wouldn't mind wasting some time on this.