Based on archives, your oldest post was January 2016, but @antipotatosquad's first post was made in August 2015, so technically potato hate blogs have per-existed your blog, but you've been more active over the years whereas they just returned after a 5 year hiatus.
Based on the above facts we can conclude that potato hate is as old as the potato itself. However, these facts also support the timeless adage that hate fizzles out (like potato roasted over open fire)
fun fact: i still don’t like potatoes
A potato a day keeps the haters away
And the taters this way