@Inkscapism
Many artists have their Patreon as one of their verified links on their profile, which you can find by following the ink on their artist tag.
And for artists who have verified profiles here who would like something added to their description, all they have to do is report themselves with a reason of “Other” and let us know what they would like added to their descriptions.
For artists who don’t have a verified profile, if they get a verified profile the description can be set up as they would like as a part of the verification, and they can just add another User Link for their Patreon and we can do them as a set.
If they don’t want to get a verified profile, however, then we don’t have a process for making sure that the right Patreon is being connected to the right profile or to the right artist tag (which is made a little more difficult because there’s no way to directly contact the owner of a particular Patreon, short of becoming a Patreon), and we get enough people misrepresenting themselves as artists that I’m uncomfortable trying to set up a personal process for that.