There has been a recurring issue with people trolling Duty Finder raids by removing marks that are put down. There is no reason for this other than to be a jerk; they can claim 'this group always goes here' but that's not the case and they should be left alone but, barring that, the name of the player removing them needs to be shown in one of the text logs, even if just as an option, so they can be reported for harassment appropriately.