p.s. Canvas is foss https://github.com/instructure/canvas-lms/wiki
Name, email, organization, title, and phone number.
This immediately they'll get random gibberish from me. The majority of LMS provide a default demo login/password and do not require personal information.
About 3 years ago I researched broadly about LMS. I tested several (including Moodle, Dokeos, Claroline, Blackboard, etc) and selected Dokeos due to its simplicity and interface ease. Moodle was a second but the interface just did not make sense to me (too cluttered, no evident task flow for teachers and students). Right now Chamilo seems to follow Dokeos original goal.