You know, there are two types of Lost fans: "journey" fans, and "destination" fans.
The former are those who enjoyed the characters and the act of discovering with them, who appreciated the development of each person we met on the island and their growth as human beings, and who viewed each episode as an experience and a thread in a large, sometimes flawed, usually beautiful tapestry.
The latter are those who merely tolerated the character arcs, who slogged through episodes for no other reason than to learn "the answers" to every question, who maintained a mental tally of every mystery posed by the series and kept score on which ones were fully resolved to their satisfaction and which weren't, and used that as a numerical basis on which to score the show.
I fully expect that the latter group is furious right now. I, as a "journey" fan, loved the finale.