You can’t, actually. It’s your post, but it’s Blizzard’s forum and they’ve made it very clear what their policy is on flagging posts for simply disagreeing with someone
Continuing the discussion from Inappropriate use of the Flagging Feature:
Continuing the discussion from Inappropriate use of the Flagging Feature:
Since what you seem to be looking for is someone just agreeing with you and not a duscussion, might I suggest just making a word document that says “I’m right and everyone who disagrees with me is a troll” and turn on text to voice so it can read that out to you over and over again. That shpuld give you that echo chamber experience you’re really looking for.