On post 10: passing people is completely legal, and signs adviser slower traffic to stay in the right lane. There's nothing dangerous about passing people so long as you exercise good judgement.
On post 32: My rear slid in only my lane; there was no one in front of me, after 2 seconds there was no one beside me. There were no entrances on the right, there was a median on the left. Completely safe.
On post 36: All 3 lanes were empty, the cars heading my direction were at a red light, nobody was turning on to the road and it was another divided highway. Again, no danger at all.
Yes, I do account for the unpredictable, that's why I go slowly if there's a situation where someone could jump out and do not try stunts when theres a potential for other cars to be near me.