Well, I did, and I didn't ;-) That was on the order of 15 years ago.
Problems that I can remember centered around fonts, font sizes, readability,
and compatibility with my past experiences (which, by that time in my life,
were mostly Dos / Window editors--in particular, I loved (I think the name was
qedit--if there is a qedit now on Linux, I think it is something different than
I remember).
And, indeed, I might be misremembering the name. It was a shareware editor,
and one of the few shareware programs I kept using (and paid for).