This donation link currently takes you to a page that appears to be for donations for Mastodon. While I understand that you may be also running servers for Mastodon, Lemmy is a separate entity, and, as such, I believe its donations should be kept separate. When a user donates, I would wager that they don’t want to feel like their donation may be used for a separate service that they may or may not use; they would want it to be used for exactly what they donated for.
It is possible that this may not be the case; the donation page name may just be a legacy thing, and not some combined pool of funds. If so, I strongly recommend adding some description to the page stating that that is the case, or better yet, simply rename it to lemmy.world donations.
I don’t agree (I donate), first it’s the same admin for both, second, as I understand it, they had to pull a bit from mastodon donations that were already established to have this lemmy server up and running, otherwise we wouldn’t have it because lemmy donations alone weren’t enough.
I wouldn’t mind giving maston something back for what we took, and I personally don’t mind at all having both together since its the same admin, and basically the same “fediverse”, opencollective is extremely transparent in accounting money info, and a bigger pool of people donating can make sure both services can run well.
Not to mention that some people use both, that would force them to make 2 different donations.