Lucien_Lachance Unfortunately the one-time donations aren't part of any tier and thus perks aren't a part of it. Only the ones designated "membership", which are monthly, have perks associated. It is billed monthly since generally it is easier for people to budget around and is easier on the administrative side, especially with the tooling.
@WetGeek The contributor's name is published with various tier information in the public JSON however as far as I am aware that can be anything. The email, as far as I can tell, is not public and is only accessible in our CSV export, which is what we will be using to add people to SendGrid mailing lists to facilitate email delivery required associated with the perk tiers (since OpenCollective does not provide these tools themselves). You can donate anonymously / incognito, which keeps it out of the public data, however we still see it in our export.