Who knows if someone at bitfinex is actively using insider info to manipulate peoples stops in order to make money off traders or if it just keeps happening so perfectly by chance....
I don't know, but it's clear someone is controlling the market with large walls and pushing the price up and down for profit. They are probably extracting their profits in fiat, causing value to leave the system and pushing the price lower and lower over time.
To some extent it could be just the
composite operator, but that does not explain the walls acting so deliberately to support the action.