ACROSS
1: When the AGF runs out
3: What to cite if you want to win an argument
6: Collegial examination
7: To build an encyclopedia
9: You can do this in articles, but not at other editors
11: Tool that allows you to easily get in trouble
14: Selective distinction given to those with a greatly outsized impact
17: Tragically underused noticeboard for wrangling out-of-control 15-downs
18: The actual shortcut, even though everyone thinks it's just "CU"
19: Education for aspiring 1-acrossers
20: Article classification that sounds unimpressive to non-Wikipedians
22: Large driver of Arbitration Report pageviews
25: Like 21-down, but can also be created at 24-down
26: Technically, this is
27: Justification for block when your 11-across run puts goatse on the Main Page
29: Required for IPs but not Danes

DOWN:
2: Place to ask why we don't just make a bot to welcome new users
4: Beginning of space opera trilogy, consulted after 28-down quadrilogy
5: Summary you use for a quick edit two seconds after sending the MassMessage
7: What we're not (except for publications such as this one)
8: Sources that don't get 28-downed when you add them
10: It helps to memorize which ones go to all of Congress first
12: They did a drive for one of these on 20-downs this month
13: Graveyard for Esperanza, BJAODN
15: Option 1: Make a joke clue for the crossword puzzle. Option 2: Same as Option 1, but it's a self-referential joke. Option 3: Neither (please specify in response)
16: You've read 25 crossword clues already. Please consider renewing your Signpost subscription today (or signing up for a free account) to help protect fearless, independent journalism in a world where unbiased reporting is more important than ever; democracy dies in darkness. Keeping The Signpost in publication means that all Wikipedians can benefit from our comprehensive coverage of ongoing events, and that we can continue to hold those in power accountable. And remember, we're always looking for new writers, editors, and contributors – if you'd like to be a part of Wikipedia's most widely respected news publication, have a look at our Quick Start guide today.
20: Peer review process that's not Peer review
21: A notice that you find on your talk page when someone likes you a lot and appreciates your edits on a controversial topic
22: Informal policy responsible for why Nixon never edited Wikipedia
23: Project page noted for her green gables
24: Project page noted for being a little orphan
27: Tag used when you find <ref>This was once revealed to me in a dream.</ref>
28: Similar in effect to when a pitched ball misses the strike zone, with regards to how many is too much