My thoughts as well, maybe adding a layer of stronger glue adhesive or starting off with something that already has strong adhesive (like vinyl wraps? dunno) could prevent that.
Actually, that got me thinking. Since the key caps are removable (someone changed to colemak and I wrote a mini-guide), the tape/whatever could possibly be placed underneath/inside the key cap. That would also keep the key-feel.
I’ve got some options to explore for when the layering comes off on my CTRL key/others.
TIL about washi tape – looks pretty cool! And it does help, I appreciate it!!