it can be happen when the trade made by the Bots,
Bittrex doesn't allow us[a human] to make a trade below than 50.000 satoshi,
because the fee that they will get is very small,so in order to get a better profit for every trade we made,they made the limit for every transaction.
but it doesn't work for them who's using a Bots for trade,because the Bot will not make a single trade,
and it might be happen for those who's using their API for trade.
or i don't really understand about it,
what can i see in my view is they're deliberately make it that way in order to show the market is active.
So in your opinion they (the developers of that particular coin) wants to show the buyers that market is not dead? Will it be a good signal for the coin price to go up or not?