Hmmm .
I don't feel I ever had any issues with civil differences of opinion on the forum.
I never had any problems with blocks of text - never really felt TL-DR about any of them or if I did it was only because I maybe found the subject interesting and some punctuation and paragraph separation would make for easier reading.
If it was simply something that held no interest for me I could just ignore the subject.
I don't feel any need for a new separate section for heavyweight topics - especially as things have gotten heavyweight in subjects as everyday as cyclists, fare dodgers on trains, the death of a contentious or controversial person etc
Debate and discussion are good and healthy where they occur and all parties are able to consider each others viewpoints and also able to re-consider their own viewpoints as a result of the discussion.
I don't want a sycophantic neutered forum where it can all get a bit samey samey after a while.
This forum has actually always been very good at self policing, from all different angles : from members respecting others and knowing when to dial it down a touch , or as Dave Mc said knowing when not to post something for the sake of not having tempers flare, or sometimes members suggesting to others to let things go a bit, or occasionally to a bit of gentle moderation.
Usually the only time it gets ugly is if you get a newbie who is so overjoyed to be here that they let themselves down or get into arguments with others almost straight away, and eventually a few others tell them to shut up, sit down and chill a bit, if they want to stay and make friends - or leave if they don't want to play nice
What I object to is debate as a HOBBY - where one or more parties brings regular debate to the forum BECAUSE THEY LIKE TO DEBATE OR ARGUE rather than because they have a differing viewpoint that they feel is very important to seeking the truth in the matter being discussed.This is what gets very tiresome to me and I suspect to some of the others who have expressed similar feelings.
Whilst there will always be times
now and then where a hot topic will get debated (which as I said is healthy), it does become very noticeable if it's always the same person that brings the DEBATE and seems to be happy to bring out the BIG GUNS no mater what subject is on the table - just for the fun of debate.
It brings something too heavyweight to the forum that is a turn off for me - it's almost like a soap opera.
I would suggest that if heavy debate is something in your blood that you need to do - seek out forums designed for just that.
A 5 second peek on Google threw up :
http://www.ukdebate.co.uk/forums/ as a typical debating forum
There may be much better ones too - if such things interest you.
However maybe debates over the properties of pickups and players using certain pickups would be more fun.
Here's one - if Hendrix had always played Gibson guitars with humbuckers would his legend & influence have been as strong as it was through his mainly playing strats