You have been posting and participating on BF for 11 years and you hadn't ever noticed that the "question" of riding against traffic flow has been raised perhaps umpteen times by a new poster and always has come up with the same responses: not recommended and for the same reasons umpteen times. Unsurprisingly, some riders are sometimes seen not following this guidance just as some riders sometimes don't follow other traffic rules, and sometimes doing the wrong thing combined with bad luck or poor timing can lead to something "happening."