Originally Posted by Sisosig

(sticky) Hilton properties joining / leaving the Hilton chain
https://www.flyertalk.com/forum/showwiki.php?t=1172658
(This wiki wasn't formatted in a consistent way, but after trying to fix the current problems is has even become worse.)

When editing in Source mode, on line 1 you'll noitice it is full of [lefts][/lefts] + newlines are not shown.
Look under Europe: many white lines added each time while saving, I removed most of them, but look at Faroe islands, I forgot to remove these.
Also I tried some re-formatting on the first two countries (Albania, Austria). Have to keep removing newlines, [lefts][/lefts] and[lists]/[lists] etc. with every "save".

Then I tried to put some (newly typed by hand) wiki text in a dormant 10 years old thread (that didn't have a wiki yet) and the exact same issues happened.