Based on my 2 minutes of using it, that's a very firm no.

If I enter a crap beer, say "heineken", I get told "no", which is fine.

If I enter random characters, say "rthjkejbfkel", I get told "no", which is not fine, because it means you are just saying no to anything that's not on your list.

So, if I enter a boutique beer that I like, say "Bluebottle" or anything from Mildura Brewery, I also get the "no", but I can't tell if it's because you're morons who don't appreciate good beer, or just ignorant about some excellent beers.

The only conclusion is I can draw is that you have a set of beers that you like, you'll say any other beer is crap (even if you've never tried it), and your suggestions are entirely opaque. I don't know why you like those beers, you're clearly not suggesting those beer based on any input I provided. That means is just a list of your preferred beers, with a front end that randomly selects a beer and an insult for me. Since I don't know you, or have any reason to trust your judgement in beer, there's no real reason to care.

Yes, it's about humor (although I don't find obscenities and insults to be particularly funny), but there's no evidence that it's actually about good beer - just beer that you happen to like with no explanation of why.

I think that's almost certainly the case.