It's just a game, and every game there will be griefers whether they are real people or not. But in the past few weeks I've been really undercutting people and keeping near a summoning bell / mb a lot. Not anymore because I'm tired of trying but I'd be really quick at changing prices. Some people might appear to be botting, but that's not the case in all cases. So it's hard to determine. I'd like to believe some of my competitors are botting but I can't prove it and I won't report them either. Just keep pushing that summoning bell and hope for the best. I can't tell you how many times I lost a sell by an undercutter who undercut a few seconds before me lol!