I’ve drunk Guinness since I was old enough to get served in pubs (about 14). The stuff in my local in Ireland was poured half and half from 2 kegs - one cold and one room temperature. A pint took 20 minutes to pour and settle and had a thick consistency you could almost take a bite out of. The time taken meant that you ordered your second pint at the same time you received your first but it was worth it. When I first moved to England in the late 80s I found the Guinness to be fucking awful so moved to drinking bitter for a bit. I did find you could get a decent pint in certain places like Liverpool (who got their stout from Dublin) but everywhere else it was poured too fast and too cold. About the mid-90s (around the time of those Rutger Hauer ads about taking time) my mate worked in a pub and went on a course on how to pour it “properly”. He said they were given a wee speech on how English drinkers are used to quickly pulled beer and wouldn’t wait for 20 minutes so they decided that 2-3 mins was the longest time allowed. I think it did improve a bit after that and I started drinking it again. Mind you, it’s been so long since I’ve had a “20 minute” pint, I’m probably used to what passes for it over here.
I love the variations - especially the stronger versions from Nigeria or the Caribbean - brewed with sorghum and clocking in about 8%. If I see an African run offy or I’m at the carnival I pop in and see if they have it. My mate who lived in Ghana said that, after giving blood there, you get a pint of the 8% stuff. Way to go!