Stress is real for everyone right now. Plenty of people doing things that we don't feel is correct behavior.
I think of mountain bikers as a whole are good examples of friendly courteous happy people. We can be the leaders of responsibility to the community.
Please don't ride on Seymore . Why. There are only three entrances and all will be crowded with far too many people . Perhaps park on a street in Deep Cove a quiet street a block or two from trails and hike up the Dark side . There is about 20 trails to choose from . Quarry rock is not one of them !
Fromme has about ten trail heads other than the parking lot . Please don't park near the parking lot . Park two or three blocks away.
I live near a park trail and I can't ride it and practice social distancing. Too many people. All local park trails are congested with lazy bored people.
Cypress has plenty of lesser known trail entrances. Have an adventure go look for them and perhaps leave your bike at home.
Use a trail running App such as Giaa to find unmarked trails and go explore on foot. Let someone know where you are hiking if your exploring.
I don't know how to ride my bike to trails with out hitting pinch points of crowds and it's always at trail heads.
It's very easy to get upset I'm not doing very well at staying positive but I'm trying.
Sorry but trail riding on popular trails is not really acceptable at all.