I don’t think we should make it too difficult, for obvious reasons. But at the same time, the commitment needs to be unequivocal.
As a minimum, I would like to see:
- confirmation in the readme (example: Beaver Builder – WordPress Page Builder – WordPress plugin | WordPress.org)
- statement via a post in these forums (example: Plugins Confirmed Working on ClassicPress v1 - #77 by Paul)
- statement in an appropriate area of the dev’s website (example: LiteSpeed Cache for WordPress - LiteSpeed Technologies)
- latest plugin code always available from GitHub or similar
These are all relatively simple and require little time or effort from the dev but I think demonstrates commitment quite clearly.
We could also ask them to tweet but tbh, I’d have thought the developer would automatically want to do this anyway.
As @anon95694377 says, I don’t think we could insist on technical support but perhaps any devs that do provide it can get an extra badge or perhaps a filter.