I'm not opposed to hosts doing a bit of non-randomization with roles. I don't support giving players you like the best roles, or to always making Long Con the Baddie Leader, or anything like that... but if you want to have an info role, maybe tweak your randomization a little to make sure a new player that role, a player who won't yet understand the subtlety that we prefer goes along with a role like that.
Another fun tactic that BR and I have used in the past is The Hunger role. The Hunger has taken a couple of different forms, but its base form is a "forcing" role. Force you to vote someone, force you to
make a case against someone, etc. Normally, this kind of thing would fall prey to a cousin of Info-Drop, where someone can make it obvious that they're being forced, so that the rest of the thread innately understands the forcing was happening. With The Hunger, you put
the fear into players... they are responsible for making damn sure no one realizes they're forced, or The Hunger kills them. Brutally. Suddenly. No appeals.
The player will sometimes ask questions of the Host, probing to see how far they can toe the line... and our response is always "If you don't know what will anger The Hunger, then your best course of action would be to tread lightly."

Fear is a powerful motivator.