Well, all that may be true. It has been a very long time since I read Harry Potter and the Philosopher's Stone. (Although I could have sworn Dumbledore was implied to have been using the elixir, and this was one reason it wasn't surprising that he he died later on.)
Not that you should just take my word for it, but I reread the books about this fall, and I'm confident that Dumbledore didn't use the elixir. According the the Wikia (which is more authoritative than I), he died at age 107 (not unusual for a Wizard, although he was killed), and it says nothing about his using the Stone.
- This thread has run its course. You will find newer threads in the discussion section.
Another discussion thread - the fourth - has reached the (arbitrary?) 500 comments threshold, so it's time for a new thread for Eliezer Yudkowsky's widely-praised Harry Potter fanfic.
Most of the paratext and fan-made resources are listed on Mr. LessWrong's author page. There is also AdeleneDawner's collection of most of the previously-published Author's Notes.
Older threads: one, two, three, four. By tag.
Newer threads are in the Discussion section, starting from Part 6.
Spoiler policy as suggested by Unnamed and approved by Eliezer, me, and at least three other upmodders:
It would also be quite sensible and welcome to continue the practice of declaring at the top of your post which chapters you are about to discuss, especially for newly-published ones, so that people who haven't yet seen them can stop reading in time.