No. [PromoteScid] or become a part of [ScidCommunity] instead.
If you want to donate money, consider giving to chess foundations.
Yes! Browse the tickets for issues and requests.
See also [SendPatches] and [GetBugsFixed].
You can [PromoteScid] within your community.
You can [GiveFeedback] on the software or the project, including SCID's Wiki.
You can edit, proofread, fact-check, or translate SCID's help files.
You can report bugs or request features using the Trackers, see below.
The SCIDProject maintains three trackers:
https://sourceforge.net/p/scid/bugs/
https://sourceforge.net/p/scid/feature-requests/
https://sourceforge.net/p/scid/patches/
Wiki: EditTclFiles
Wiki: GetBugsFixed
Wiki: GiveFeedback
Wiki: PromoteScid
Wiki: SendPatches
Wiki: StartHere