Players wait. They have the patience to put the resentment in storage until they have the influence and power to inflict real harm.
That's exactly why gossip should be restricted to points of law and industry trends. When leveraged to examine the supposed flaws of someone who is or will be a colleague or superior it becomes an unstable substance which can blow up at any time in the future.
"She's a lightweight." That's what the 2L observed about a fellow student. Years later when he applied at the Department of Justice, where she had a good job, he was turned down. His gut told him that she was in the decision-making loop. He was probably on the money.
Gossip constitutes a never-ending conversation. Never assume it's confidential, especially if the bits and pieces are juicy. Allies in her network will tip her off that she's being badmouthed by X. Enemies will bring it up as a tool of torment: Look, X is down on you, big time. I hope that won't ruin your chances for a summer internship.
Could it constitute guilt by association to be part of the field force of gossip? Yes. Actual participation is irrelevant. Veer away from the gossips. Save your career from tragic surprises later on.