Either they are alts or they are paid to shill. This might be the working of the new autoreplybot. Only thing that can be done here on your side, is report. Or message any global mods/preferably mprep since he is the head mod of the section,and explain your case.
It's highly probable that these accounts are alts made by the devs, teams, or cm. And Either way, they're contributing much to the crappy posts lying around the forum, covering all possible healthy discussions.