Yes, but not always. It depends on what U want to do.
(BTW, the [Menu] button atop the vertical black bar reveals the widgets.)
Here is a little silliness with self-reference in response to [Diminutive ~ Pic and a Word Challenge #90], which displays a good use of a long word.
Big word for “tiny” fills out
first line of haiku.
Hmmm. Would anybody want a long synonym for “tiny” in a 5-7-5 haiku? Nah.
BTW, self-reference in language really is a big deal, as explained (among other places) here and here. It has also been joked about in other haiku. Some examples are here and here.