Well yes it is actually pathetic and I'll be glad to explain why...
"Barely Listenable" is something that say a woman in her 70 who enjoys Classical might say about Metallica, but when a supposed Metallica fan says the same about DM it's just plain odd is what it is. You don't like it, you don't think it's that strong, not as good as expected, not heavy enough, OK gotcha and those are all valid. Barely listenable is just unjust and unfair honestly, considering how much better DM is than anything they have done in close to 20 years. Saying it's s**t means you either haven't really listened to it or just currently subscribe to the "all things Metallica suck" school of thought; there is a difference between not liking something and saying it's worthless, crap, etc. I am not a fan of Figure Skating, it bores the f**k out of me, but it's not "crap".
As for The Wall, which I find almost unimaginable that a supposed fan doesn't like, that's an opinion, as I didn't hear you cal lit unlistenable or s**t. You are very likely in the minority with that opinion but hey, that's cool. Saying it's weak or not a good piece of music would be insane, however. I think Animals and The Final Cut are two of the greatest Pink Floyd, if not CD's in general, releases to come in the last 35 years but some people don't like either album and ONLY like The Wall. Those are opinions and I get it.