[DONE even without upvotes, because it is (1) essential and (2) trivial to revert]
When I posted my first post here, I didn't know exactly how to mask links under text. I found out later, but still.
I thought it was just me, but today another user, Jia Yiyang just asked me how to mask links under text. So I think that there should be an instruction regarding this in the custom text.
To mask links under text, please type your text, highlight it, and click the "link" button. You can then enter your link URL.