why do so many discussions turn contentious?


just venting....why do so many discussion posts need to turn  contenious and nasty?  do you guys find that constructive and/or enjoyable?  I have no clue who or how this forum is moderated, but I sure would love to see a stop to that...it makes me feel like this hobby is dominated by total jerks.

Can't we play nice, share OPINIONS and OBSERVATIONS, realizing that  they often are subjective and biased.  
"if you dont have anything nice to say, say nothing"?  If you wish to disagree, do it in a constructive and mature fashion, no need for "argument ad hominem"...

with all the chaff, one must waste so much time finding the wheat, figuratively speaking.  

I doubt my writing this will change anything, but, like most social media, people writing to others without facing them does not bring out the best, sadly......



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So many opinions are subjective with no measurement data to back their opinion so then it becomes an ego game where one has to denigrate other's opinion in order to show that your opinion is the one others should listen to.
Mostly a lurker, curious to learn, but from observation these two stand out 1) snarky, political non sequiturs such as: "It’s the liberals" and 2) allowing the one contributor to repeatedly hijack treads with condescending gibberish about Tektons.  It's tedious, loses readers and should not be indulged to the degree it is here.
I hope I'm not an angry old man. Getting old, but in the process, seem to have less and less to get angry about, at least as relates to the topics relevant to this forum.