Have you ever liked anything? Honestly? It was amazing, and this coming from a rabid fan of hunting for answers and dissecting everything about the show. Yes, I gave up on the show, but it somehow wrapped me right back up in it last night.
It's a tv show, if this really ruined your day and you HATE it, you missed the point. One of the most entertaining things TV has ever given me. Challenging TV > getting answers to really unimportant questions. In my opinion at least.
I loved the show for the first two seasons, then thought the next two were only kind of average. The final two were ultimately epic failures (and ratings agree with me).
I don't feel like "what is the island" is ultimately a minor question. If you started watching this show in the first two seasons you no doubt did it to get answers to two questions: what happens to these people, and what the heck is up with this island. Ultimately, we never got an answer to that second question, at all. And what little bits we did get ultimately make little sense on their face and in many cases openly contradict what we saw in the early seasons.
As for what happens to these people, that's great and all, but ending the show at the end of season 4 seems to work alot better. Some get off, and some don't. Jack realizes the he was wrong on reason vs. faith. It would've cut out the stinker final two seasons. It was just so much fluff and dredging up the same issues again. I don't want to get all fanboy-ish and break down details, but it just left me going "eh."
And as for have I ever liked anything, sorry I don't technologically ejaculate over every hyped thing that comes along like yourself. I like Mad Men, Breaking Bad, Big Love, Dexter, In Treatment, ABC Family made-for-teens dramas and Gossip Girl. Oh, and showering daily.