what do you mean it didn't stop anyone? and what is an attack rank?
My question is if you had 4 players, an elven fighter/mage, a human cleric, a Dwarven thief and Human Ranger... you get to a point where the two players playing humans want to keep going but the other two are at or about to be at level limit... how do you continue the campaign?
In my experience we always pushed off the choice until someone hit a level limit, and as such 7 out of 10 times it wouldn't come up. Then the few times it did we decided it wasn't worth retiring and brining in new characters so we would just ignore them... I only once saw a group choice to use the limits. I thought the game was odd because everyone started as demi humans with 2 or three classes, then retired before level limit and brought in a human with only 1 class...
They wanted to play. They also believed their character was the best. The attack ranks were like a partial level increase, from Expert. I don't remember what they gave, but I think it was THAC0 and saving throws.