Lwaxy
Cute but dangerous
Getting together to play an RPG is about much more than just role playing or participating in a hobby...it's participating in a social event at (usually) someone's home.
Also, Olive was talking specifically about people he didn't already know. It sounds to me like a very good rule of thumb to follow. Not just for RPG's, but for inclusion of anyone in a social situation in one's own home.
But that's the thing, he was talking about new people.
People we don't know wouldn't get into our home. We have our cats to think of, among other things. Thus, I'm assuming (and that may be wrong) that it is the same situation with Olive and he'd meet people in a neutral place first. New people I meet in the library, the club house or some restaurant. The first sessions are usually in such locations as well to see if the group works at all. Some groups never make it to anyone's home - we stay in a more or less public place.
I agree that for in home games, you want to be more specific. But I am not sure most groups usually meet in someone's home - I know for most of our players, the families would freak if we'd want to play at their place, no matter if RPGs, boardgames or card games. I'm just lucky that my family plays, so there is rarely an argument about it (asides from the occasional "you want to start another group?" complaint).
I'm guessing at least half of the regular groups do not meet at home - this seems to be especially true in Germany, from what I saw, as the non-playing families either want their peace from it all or the flats/houses are way too small to allow for a group. When we still lived in a flat there was no chance to invite a group in, especially as the walls were thin.
If you don't meet at home, you don't need to be screening your players. You'll get to know them eventually, some won't fit in and will just not come back. And once you do know them well enough you will know who you can invite home.
If you do meet your new players in your home already, then maybe you even need to be more specific than Olive. But I've never started a group that way.
Worth a poll.