Why?
- Politically motivated deletion discussions?
Check. - Admins violating sanctions placed on them for attacking other users, with impunity? Check.
- "Notability" used as an excuse to excise useful content? Check.
- A left-leaning bias that will never, ever be corrected (since it's woven into the fabric of the site as sourcing policy places mainstream media and academica above all else)? Check.
Thank god for the GFDL - people have the ability to take the good information placed here by volunteers from around the world and copy that somewhere else before the notability police show up and flag it down.
Having floated over this site for the past 10 years or so, mostly reading, occasionally editing, something I've learned is that it's possible to be a complete and utter WP:DICK to someone without ever swearing at them or insulting them. You'll never find such a complete compendium of civilized jerkitude anywhere else than on the talk page of a political topic discussion on Wikipedia.
So, congratulations, another editor run off. If anyone ever cares to look at the reason behind declining active user numbers above are some reasons to look at - not that I trust this community for a moment to have the self awareness necessary to do so.