In the current version of mentorship platform, global skill searches are not possible, unless the mentorship program has the skill listed in the name. V2 of platform has global searching.
Not sure of what you mean by “project becomes part of Linux Foundation”…we make regular announcements via our newsletter and Press releases of new projects joining the foundation.
Projects with “0” raised are not able to pay stipends to mentees
For every mentorship card, there is a corresponding crowdfunding card (there is a button to “View Crowdfunding” on the mentorship page details. You will see the amount of money raised there.
Generally the money comes in right at the start of the mentorship after applications have been accepted.