Because people (myself included) don't read, don't pay attention.
And even if it is there, in the manual, on the registration screen, one is not likely to look in the manual, at least not initially, & very likely to miss it on the registration screen.
I don't know how long the limitations have been there, but I never noticed them until today.
Anytime that I would bring up the Trial, I knew I had no key, so I automatically ignore all - except for the 'Use Trial' button.
My fault for not paying attention, sure.
But I'm not looking to "pay attention", I'm only looking to see if this application meets my needs. Whether I can use & understand it, first, without needing to read. I just want to jump in & go & see.
Now, if I go to download the app, & if the limitations are listed on the download page, then it is for me to see, & if I miss or skip it there, then at that point I fault myself for that. But at least the information is there.
"Hey, I ran your trial, & when I went to delete ..."
"But ... on the download page, the limitations
are noted."
"Oh, silly me for not paying attention."
"OK, thanks."
If I were that person who was seriously looking & if I ignored a limitation notice on the download page, then I blame myself.
If I were that person who was seriously looking & if there were no notice on the download page, even if it was on the registration screen, I would most likely be angry at you - even though I was not paying attention.
(Prior to posting, initially, I even looked through the online help, searched for "Limit", did go to the registration help topic, & still missed it.)
(I only brought this up; 1, because of the
Freezing thread, & the suggestion to try the Trial, & 2, because I just ran into & never realized it existed - even though I had run the Trial on a number of occasions. At that point, my immediate thought was, if I were Mr. Freezing, & I just spent a good bit of time exploring the program, & then I get to the end of my testing & realize there were limits ...

.)