Yes, I have. I copy the page to my clipboard and paste to a word program first. I've found that doing it any other way gets me lots of code. This is especially true of the biography section, where a lot of code shows up. I go to the profile of the person and grab the "events" for dates and places. I copy all the sibs and parents and spouses from the main profile page. I check trees of others with smart matching and get anything I don't have from those sites. I found that using the gedcom from them is somewhat useful also, but it doesn't seem to work as a gedcom source for wikitree.
