*waves* as someone who has grumbled about Denny very often, I can link you to some of the reasons why some of us get really frustrated with it1 I'll send you a URL to a sort of summary after this and hope Tumblr doesn't eat it :P
But also one big reason it gets people frustrated in Tumblr spaces specifically is because Denny cuts and rearranges things in several places, and if you're doing a group readalong--as is often the case here -- that just throws everyone off , repeatedly, in a way that other differing translations don't. So do also keep that in mind when looking at people in the old tags grumping about it- it was just the source of Some Awkwardness, and became kind of an in-joke with the group reads that had this happening.
Ohh I see, thanks so much for explaining that and providing that link (which I'll also paste here for anyone else who might be interested: https://www.tumblr.com/pilferingapples/182027215356/whats-wrong-with-norman-denny?source=share)
BTW I found the difference in tone between this ask (calm, measured) and the post you linked (full roast mode) really funny—time heals all wounds, I see, or at least dulls the pain 😂
But yeah that's all super valid, happy to join in bagging on Norman Denny from this day forward [readying tomatoes to chuck] 🥲
My edition is Denny, but I also tend to read classics partially in book form and partially on Project Gutenberg from my phone (when lying in bed/in the dark/commuting/out and about/etc.), so I basically read half Denny and half Hapgood. In terms of straight-up reading experience (without having made any comparisons, either between translations or to the original French), I was fine with both (but now having read of Denny's Crimes, I am indeed annoyed with him).
[Fairly irrelevant sidenote] The one thing that bothered me at the time of reading was Hapgood's use of 'thou'. I don't like it when translators use 'thou' in place of 'tu'; I find it has completely the wrong effect, because to a modern English speaker it reads as more formal, instead of less. I prefer when translators find another way to convey the difference in address.