- Google search results get worse every year.
- Stackoverflow lies in ruins (albeit the ruins are still useful).
- ICQ/Gtalk/AIM completely dead and all in silos now (Slack).
- Twitter is dead.
- Facebook is too annoying now.
Google Maps is still amazing, but I consider that more a miracle of the internet as opposed to a miracle of the WWW, since the data is essentially sourced commercially (satellites and maps), whereas with the examples above the data was sourced communally.
And so I think it's inevitable Wikipedia will die within my lifetime. Probably within the decade. I suspect my children will never get to enjoy the miraculous shockingly glorious human affirming paradox of Wikipedia. Their (public school) teachers senselessly already tell them to avoid it. :-(
I don't think Wikipedia will die for any specific technical or political reason. I just think it will die because everything else that was wonderful from 2009 or before already has, so why not Wikipedia?