UF trial version - what happens after 30 days?

I would like to know what happens when someone uses the trial version of UF to the full. After 30 days does the trial stop working? I've never used a trial for that long myself so don't know what happens!
(I recently upgraded to UF6 Extended, yay!!)

Also, I know a few people who are a bit reluctant to upgrade. They may well install the trial then uninstall it - perhaps waiting until they feel the time is right or for when they can afford to purchase the program. Would they be able to trial it again a little further into the future or would they hit the 30-day expiry date from the first install?

You can still use the trial after 30 days, but the evaluation dialog will let you wait for a couple of seconds before you can proceed. And of course, any exported or rendered images are marked with "evaluation copy" texts.

Thank you, Frederik.