Hi, #snacizens. After much hesitation, I finally did what some fellow users suggested: I created a Liberapay account. Until now, I used to accept small donations via ko-fi.com; this will still be possible. This Liberapay account is also linked to a new Stripe account, so any one of you not having a credit card (or disliking Paypal) can also contribute.

Any help will be greatly and sincerely appreciated.

Here it is: https://liberapay.com/grunfink/

Thank very much to everybody.