Percentages

That's true, but... There are pictures and descriptions of the roles, and newspapers should be based on them (and only on them). I still haven't forgotten my healing in the phone booth... How can someone who hasn't watched your Doctor (and I'm one of those people) understand what this healing is? And the role of the killed person should be clearly defined, as well as the role of the killer, and not as it was in '81...

Don't touch the booth, Yashchur.)
First, the reference in the setting is obvious. You could at least see it before the game (even if you didn't immediately understand what it was) and simply Google it. Second, it didn't matter – after your surprise, a bunch of people who knew the reference piled into the thread and explained everything in five minutes.

So, is it normal when a town can't execute anyone from the Mafia for three days because they have immunities? And this definitely didn't upset or annoy the townspeople, unlike those same percentages, who rarely play a role.

1. It didn't upset or annoy them. People know before the game that a certain role needs to be executed for several days, and the tactics are built around this from the very beginning. Players are prepared for the difficulties in advance, and their only concern is to prepare countermeasures for these difficulties. You can't really prepare for percentages; it might turn out one way, or another. A winning tactic with one random outcome becomes a losing tactic with another, and vice versa.
2. Rarely plays a role = if they do play a role, then expect a general outcry, because no one expected them to play, and then, ugh, they did! ))