Hey Frank,
Great question and one I've mulled over a lot since my transition from Corporate Shite-talker to ROFWTOMH (Retired Old Fart With Time On My Hands). One consequence is I spend a lot more time on fora like this one as they fuel my interest in my pastimes and are a great source of expertise and education. They all suffer one great malaise....
Opinionated assertion purporting as fact. ( I refer you to our heated but I think interesting exchange on Climate Change down here in this Offus Topicus underworld)
If all you want to do is trade un-researched opinionated shite that you read in some rag or heard from a bloke in the bar then ..... do it in the bar. Best thing is you'll have forgotten most by the morning anyway.
If however you are really interested in being informed, or informing, with some humour and self-depreciation, and a little care to check out the basis for what you say ..... then I say, have at it, however non-PC the topic might be. One of the Corporate shite-talk aspirations we had in a company I worked for was the promotion of 'Generative Discussions' ..... roughly translated as discussions where you came out of it with new information, new perspectives and possibly even a change in opinion on a topic. A sort of 'I never thought of it like that before' moment. Means you have to be prepared to change your mind, and eat quite a bit of humble pie, though.
If you're still reading this Frank .... then I'd like to say that I tend to open a topic that has you as the creator or contributor because I know I'm more likely to find a 'generative discussion', technical or otherwise. Ed Mayo and 304065 (among others) are in that camp too. Yours are just on average more amusing than theirs!
So I say let these 'hot' topics continue, but if they degenerate into 'I know, therefore I say, therefore it's so' with no ability to provide sound basis when challenged then at least have them with a like-minded mate in bar and save the rest of us some quality pi$$-taking time on here.
Love and kisses
Mick
Oh, and I assert you probably wouldn't have won the War of Independence without De Grasse and his French fleet .......