Please name me one that is confirmed to be caused by bots. The last time i checked wikipedia there was still discussion whether the 2010 flash crash was caused by bots or fat fingers.
I personally have quite a bit of knowledge about the algorithms used in trading bots. I run my own trading bots on multiple exchanges, including havelock (configured to trade only neo&bee stocks). And although the idea of 'war bots' is cool, it isn't practical without A) extensive knowledge of where everybody put their stop losses or B) extensive knowledge about the exact algorithms of other bots.