I'm not a recovering addict but have become familiar with the process. I think a lot of people worry about saying congratulations because they aren't sure if it will send you into a setback. I think they worry about planting the idea in your head by bringing up the topic, or on the other hand, fail to understand the struggles you encounter.

There is another forum on here, where you might get more feedback, the addictions forum. Oh and there's a healthy parenting forum as well. Not saying that you posted in the wrong place, but sometimes it takes some time to find a place where you can get the best answer for your issue -because we all have issues that differ kwim?