Comment by quitit

These commenters exist (usually as bots) simply to sow a false narrative for political reasons - the views they extoll are not based on measurement or research. When active as bots, they present a idea of discord and doubt - this is a common tactic to give the appearance of the matter not being long-settled. It's also not uncommon for them to cite an unsourced anecdote which other than being irrelevant, most likely never even existed.

Rather telling is that the same user had also commented twice nearly simultaneously. These types of replies are typical for comments that mention climate or government spending.