Yeah, some people like bad games. Just because you like a game doesn't mean it's actually good. Look at something like Ninja Breadman for example.

That game has an insane cult following but it's terrible.

 Ninja Breadman sucks to no end.  How can anyone like that game?

 Ask Monster Hunter, or MH2, or MHF, or MHF2, or MHF2G

They will all get low reviews over here, but sell lamazingly (The Freedoms)

I think the better question here is:  Why have you played it?

 I never actually played it but the game does not look like fun at all

So this means I have to ask this question, how do you know it "sucks to no end"?

PS. I've never played and don't plan on it, but that is because it doesn't fall into a genre of games I like.

Well, one "problem" with the discrepency is that reader reviews should reveal a selection bias. That is, reviewers are forced to review everything. It is rare (if ever) that different reviewers are given only games that suits their particular tastes, but gamers that won't like games like Baroque will never review it because they never buy it.

Moreover, the professional reviewer will always write a review, because they are paid to do so, and MC will actively seek out the review for their site. A gamer, OTOH, is more likely to toss a bad game in the closet than to spend the time playing it through and writing a detailed review and then posting it on MC . Gamers are much more likely to do that with a game that they really like and post it on MC for all to see.

This sort of discrepancy always happens with dungeon crawlers. Reviewers just don't seem to understand them. See, for reference, the Pokemon Mystery Dungeon games.

 Actually, they do understand dugeon crawlers.  They are very repetitive which is what Children of Mana and Pokemon Mystery Dungeon should have taught you.  Dungeon crawlers are love-it or hate-it games