Is the following typical of people's reactions to cleaned up addicts?

Is it typical people think the addict’s former behavior personality was better, more successful at work, more fun, etc.? Is it typical for people to regard them with suspicion or to give them the cold shoulder? Do they go through a period of confidence adjustment and then get their “groove” back? Do some people just really suck that bad that they’d tell a person they miss the “old them” knowing the “old them” was the unhealthy one?