Why Mets fans root against the Yankees in the postseason

We decided to ask our fellow fans on Twitter about their feelings for the New York Yankees and why they root against them in the postseason.
And of course, they delivered.
The overwhelming response was focused, unsurprisingly, on the awfulness of Yankee fans.
Yankees fans. Plain and simple.
— Ben Yoel (@Ben_Yoel) October 16, 2017
Reasons like this. pic.twitter.com/LLdqkZC0KH
— Jarred Heuer (@jheuer515) October 16, 2017
Having to hear 27 rings from their incompetent fans, when comparing to the Mets, even though they won 19 of them before the Mets existed, is reason enough for me.
— sean (@seantrcy) October 16, 2017
I’m 28. A large majority of my friends are Yankees fans whose worst memories are a few 86 win seasons. They don’t know misery.
— Chris Miles (@itsmilesbrah) October 16, 2017
Others gave reasons that focused more on past experiences like the 2000 World Series, and the Roger Clemens incidents against Mike Piazza. Yeah, we’re still really mad about that one.
I can never forgive what Clemens did to Piazza. Ever. For as long as I live.
— Alexandra (@Aleeexandraaa24) October 16, 2017
The 2000 World Series
— ??Kris?? (@Krissss_B) October 16, 2017
Others were also pretty honest in the fact that we hate them because they’re good so frequently.
Also the late great W.P. Kinsella wrote: "The Yankees lose so seldom you have to celebrate every single time."
— Danielle Sepulveres (@ellesep) October 16, 2017
Because it's supposed to be our time and they're supposed to be rebuilding.. but no, here comes another dynasty run...
— Ari Kreisman (@arikreisman) October 16, 2017
Jealousy, their fans, the sense of entitlement surrounding the whole franchise, their fans, Roger Clemens, their fans
— pgs1022 (@phillusaglass) October 16, 2017
Whatever your reason for disliking the Yankees, we encourage you to keep going. Hopefully the Astros can wrap up this series by Tuesday night, but even if that’s not the case, we’ll always root for whoever they end up playing. You can say we’re petty, you can say we’re childish. And that may be true. But that’s just the nature of the Mets fan.