Not super into keyboards, but maybe something like this? https://www.keychron.com/collections/custom-keyboards/products/keychron-q12-qmk-custom-mechanical-keyboard#

Claim your spot under the underpass before someone else takes it.

It switched to a subscription model. When you launch the app now it asks what tier you want to be part of per month

Seems like a reasonable position? If your goal is a safe welcoming community, cutting users who do not fit that initiative makes sense. If someone is racist or insulting, regardless of if they have donated or you see an influx of people with similar ideals, it is against the goals and objectives of the instance and the community they wish to foster. So, cutting them off seems appropriate.