I made a post on r/civ (Civilization games subreddit) showing a really funky shaped randomly generated river I saw and most comments were fine but one guy was convinced that I went through the comparatively monumental effort of opening the map editor and changing the river for karma, as opposed to just starting the game and taking a screenshot.
And just to top it off another guy saw the fact that my scout unit was in the far north of the map and went on an obscenely condescending diatribe about how "ackshually" I should be placing my units in the far south of the map because that way I can explore better and whatever the hell. Dude did not stop for one second to consider that maybe the scout that was in the far north was exploring the cool river and that I didn't waste any production points on him because I got him for free from a tribal village...
God every time I go on that website (because let's be honest not a whole lot of good communities here for what I'm interested in) I get excited to share something super innocent and then some total loser has to come and ruin it all.
Reddit has always attracted a bunch of "ackchually"-ers, people who just may not be all that good at relating to others for various reasons, people looking to start shit, people looking to push agendas, people looking to one-up others over any old shit, people who have fuck all else to do, etc.
Looking at the actual post and the actual comments you must be referring to, one is just being a twat and is even getting downvoted for it, as they should be. The guy pointing out the exploration seems to have a point and be trying to help. I'm not sure I see the condescension.