It isn't leisure riders that annoy me. It's leisure riders who think they know it all. As I am a young rider whenever I see a 30-40 something year old fair-weather rider they usually banter with me. Because I am mid twenties they assume I am a spring chicken who is wobbly on the road and can't do anything. I then ask them how long they've had their bike for with the 2002 plate, they say from brand new, and my eyes pop when I see the 8,000 mile odo reading. Congratulations, you have 11 years experience riding in perfect conditions more often than not on 10 metre wide motorways. I on the other hand, have 3 years experience with waaaay over 8k miles in rain, mud, silt, snow, hail, going through rush hour inner town areas requiring a lot more skill, observation and control.
So yes, it does bug me when I start getting "schooled" by someone who probably can't filter anywhere near my level or someone who usually dangles their legs at 20mph or below for stabilizer wheel effect.
Don't get me wrong I don't think im a top notch rider, but I am certainly better than a lot of fair weather riders. It has been shown a lot of bike fatalities are down to fair weathers who haven't ridden in a year since last summer and then start doing the twisties at speeds they were doing ages ago, and they just can't keep up with what they used to be able to do. So long as they don't try to school me, I get along with fair weather riders, but they can occasionally piss me off.
Gotta love the winter biker nods, the few that are around. Also, other than snow, riding in winter isn't that difficult, it's just a little cold