I have noticed that if I put a buy order up - for instance - on any not so heavily traded coin, if close to the highest bid, often within 20 secs the highest bid will try to beat me. Or when I put it close to the lowest ask price, often it won´t take long till I get someone to sell it to me. Before this there can have been hours with no activity. To me, this does not look like bots that are set up to track MDA or other common strategies, but the exchanges own bots reacting to certain inputs. Does somebody know more about the algorithms used by the crypto exchanges, which behaves this way?
Thanks in advance!