I agree with Moose. The Steam access doesn't do much good for the Public racing community, I reckon. Whereas in LFS and iRacing, nearly only the "hardcore" part of the playerbase was staying in the game, therefore it was possible to actually have fun doing public races, in rFactor which was less challenging and attracting a less-skilled playerbase (on average), it was nearly impossible to do a proper public race.
This will be especially true with the race cars, I think. Road cars might have a few nice races on public, because they are not as difficult to handle, also more forgiving on mistakes. But we'll see how this Steam attention affects the Multiplayer.