It depends on how you are looking at it.
That advice sounds interesting and I can see the potential of a funny channel based on that. Telling someone to put on an act to grow their channel, in itself, is technically not "bad advice". There are many channels, now and in the past, that based almost everything off of acting and faking a role.
From what you've explained though, this advice does not sound good because it goes against your morals and respect you have for yourself. If you aren't comfortable "acting" in front of others and showing yourself, don't do it.