Ask HN: YC App Ideas from YC Partners, Alumni, Etc.

Do any YC Partners, Alumni, etc. - have startup ideas that they would like to see YC Apps for, and if so:

(1) What do you feel would be your requirements to endorse the application as "infinite" or "A"?

(2) What be the weekly growth metric you feel would be the benchmark to hit week over week?

(3) Would it be okay to follow up with you directly on the idea by email?