Here’s the thing. These other skaters are rivals for sure, but they’re also friends. The Grace they have on the ice is just typically mirrored off. Figure skaters are performers and athletes much like dance, not like pure physical effort like running etc.
Here’s what trash talk and that sort of environment would ruin: One poor young girl left her skates at home for the competition our club hosted. She came from hours away and she was devastated. A coach who knows us, asked a big ask. Could she borrow my daughters skates? My DD didn’t blink and eye. She loaned her skates no question. And this skater was a direct competitor. We were happy and excited that she ended up skating well. She competed in a different group at the same event, then competed directly in final rounds the next day (in her own skates). I’m so grateful for the support and community of figure skaters and I would never want it to change.
Another time, we were the ones who benefitted from the skate community. We ended up broken down on the side of the road. A skate friend saw us and turned back to get us! They went way out of their way to turn around on the highway. I’m the only adult at home for now and I had no idea how I was going to manage. Trash talk and that attitude sorta ruins that.
I think the OP has backpedaled from trash talk to playful teasing. Which is very different and requires the cooperation of both competitors. I think some friendly rivalries can exist like that but it actually requires a mutual respect. Consistently encouraging trash talk erodes and undermines mutual respect so I’m sure most parents and coaches would never condone it.