Hi river. It good that you posted about it as it can get the gears in motion as people share ideas. One of the responses suggested that even as a recovering person he has the same judgements. That is very common to varying degrees also, I remember having lots of that judgement of addicts who were worse than I was in my early years on my sobriety high horse. They are pretty rare anymore.
But, That aside, what I really wanted to say is the old suggestion to write a letter. Write a letter to the coworkers that you don't plan to give them. But write it as if you will and so you can say everything you want to in the letter. It could help shed light on this situation
Good luck