Hey folks,
My 2 mini-euros worth. I use text rotation in Dia all the time. How?
Well, I never use Dia diagrams as my final format. I always export to png and use those in my web pages. And fire up Gimp to do my final touch up. It is easier to crop to the dimensions I need, clean up a messy arrow, or move text over a pixel or two. I can easily rotate text (or anything else) in Gimp.
So all this anguish seems misplaced to me. Dia is not a text, or graphics, manipulation program. Now probably every single person on this list is more computer savvy than I, and certainly everyone here can code more than I can, since any value is greater than zero. So this is the opinion of an uninformed person, but it has been working fine for me for years.
Thanks-
Jim Clark