There is a question How to hide users from the GDM login screen? which is 5 years old, subsequently most voted and accepted answers don't work any more.
I needed to hide a user from appearing on login screen and I found this question, I started implementing answers that are voted most and gave up after implementing 2 answers (and I believe so will most internet searchers will).
The answer that works is below with very few votes. I believe this answer should be at the top because most Linux users tend to be updated with software.
So my question how to make it easy for users to find working and less voted answers easily? Should we start a new similar question that specifies newer version and answer that works perfectly? OR do you have any idea, please discuss here.