Trialware is broken by design anyway. While auto-billing is plain fraud (and is outlawed in some countries like Germany AFAIK), letting people to use a product

Trialware is broken by design anyway. While auto-billing is plain fraud (and is outlawed in some countries like Germany AFAIK), letting people to use a product for free during a single month is pointless - 90% times I install a trial version, forget about it, come back some months later when I have time just to find out I'm not allowed to try it any more because the trial has expired as a month since the installation has passed.