Ok... if something isn't necessary, then why would someone use it? Doesn't make sense to me... but people will do what they want.
He asked for advice, and I gave him my PROFESSIONAL advice. But what do I know... only been doing this for 20 years or so, successfully.
Do what you want people, but no person of sane mind should ever recommend putting any kind of light INSIDE an enclosure with their snake. Put it on top, outside of the tank, if you want to use a light.
As far as telling him what he already knows... I was reiterating the importance of controlling a UTH.
Moving onto threads where people appreciate good advice...
Thanks.