There is no miracle, we get such questions from time to time. We allow bot trading, moreover we encourage bot trading clients from the first day run. Thus, high frequency and fast trading happens quite often. Bot owners use API only (zero delay). When client's bot sees good order (I mean good price), he immediately closes it. This action takes much less than a second from the opening time of "good order". You may notice some sort of blink in orderbook, because the "web part" of an exchange is much more slower then API. Order must live 1-3 second to fully appear in orderbook.
Usually this trading activity has an arbitration character, this means that client opens 2 orders immediately, first at our exchange and second at another one. So he earns something from spread prices. These clients don't place their own orders in orderbook, usually they only take liquidity, but this is legal activity. So, they do it automatically and repeat hundreds and even thousands of times daily for the big volume coins, they turn a lot of money between exchanges.
Also from time to time happens self trading, but not so often and we're trying to prohibit when notice. Some glitches of bot trading also take place, when people test their scripts or they don't work properly. Since we don't forbid bot trading and arbitration trading, we have really a lot of such clients, because some of exchanges do not encourage this activity.
And quite rare malicious actions may happen when people who interested in increasing the volume of trades can try to increase it manually from several accounts. This is hard to detect for us, but we are trying.
We did not found any illegal activity at BATA/BTC pair for the last days and we'd like to notice that 20$ volume is not that amount when we usually start review of trading activity. When we see raise from 1000$ to 50000$ then we of course trying to find out the reason.
We understand that particular qualities of our exchange may interfere your business or development of your coin. You as developer has all the levers and can stop trading or delist coin if you want, just let us know, we'll process your request immediately.
P.S. sorry for my english, it is far from perfect.
P.S.S. we will not change our policy for API and bot trading, please don't ask.
I am happy with your explanation and can perfectly understand. I do thank you for taking the time to post here.