I think I belong in the majority of players who develop their characters after they join a faction as this is when you get more chances to roleplay them and flesh them out. By creating all those little details that make them interesting, details when at the time of the creation are considered unnecessary to write them down.
As for the topic's title, I think only the Lane Hackers currently have a recruitment system which is different from a simple filling a template with words. On the other hand, I think the LR- is the official faction with the "least demanding" recruitment. You only need to write three or four sentences about your Rogue.