No, you’re free to talk about whatever you want. But don’t expect pointless bikeshedding to be well-received.

First, it’s not a real problem. The JS community is pretty much equivalent to any other of this matter.

Second, it’s not a big issue. Use a code formatter to make sure shared code is in the agreed style for whatever project you are contributing to.

Third, this does not affect your own code. You are free and encouraged to use whatever formatting convention works for your own teams. Just make sure it’s consistent and enforced.

Keeping consistent style is anything but a “silly rule” and it’s essentially no effort.