for Christ's sake why does so many people get upset by and rude...

for Christ's sake why does so many people get upset by and rude to those who post a contrary view if they do not hold a stock. I for one am happy to hear them even if the poster does not hold,does not holding a stock make an opinion or knowledge somehow irrelevant,I don't think so.Also a forum member may not be holding and be on the cusp of diving in but would just like to discuss a few perceived problems,Lets face it we need both camps holding or not to facilitate good robust discussion.I hate it when when posters on a stock all love it to bits and all pat each other on the back coz I learn little