As for me, I don't trust most car drivers when we each have a full lane, much less splitting lanes with them.
Some of the comments on this thread indicate that distrust is well placed.
Most of the squawking comes from cage (car) drivers that are just jealous that they have to sit in traffic while the bikers zip by.
Yeah, and most of them have air conditioning. Go figure.
Also true of many water cooled bikes, especially on hot days.