I think users will end up choosing what annotations they want to use on the project level, so it would be nice to have project level upvotes and downvotes.
There could be a project leader board as well.
For example,
rank
score
project
1.
↑ 150
"IUCN range annotations"
2.
↑ 100
"Annotations from GBIF distribution extensions"
3.
↑ 50
"Vascular plant range annotations project"
4.
↑ 25
"Annotations from the book World Mammals Catalogue"
I think users will end up choosing what annotations they want to use on the project level, so it would be nice to have project level upvotes and downvotes.
There could be a project leader board as well.
For example,