Ha. All the bullshit about 'staying positive' makes -- in my deeply un-PC opinion -- bugger all difference to your outcomes except for the fact it makes other people more comfortable. Pollyfukinanna I am not.
Nobody knows what they don't know. Some of my friends had nearly as steep a learning curve as I did when I was first diagnosed. Bless the good ones; some made terrible gaffs and I behaved badly by savaging them for it. In the end, we all learned more about the stuff that goes on in other people's than we probably would have chosen to.
I think it comes down to the intention.
If I know someone is really struggling to find the right thing to say, I'd rather them screw it up than avoid me because they have no idea what all the new territory involves. But I will let them know I don't agree with them/it's not really like that/ I don't want to hear that again.
The recidivist arseholes are a totally different matter. Three strikes and you are most decidedly sacked. That would be difficult, inconvenient and potentially expensive if it was my partner so I'm glad that me getting over anything that individual has done to raise what is (not so jokingly) known as The Wrath of Marg has been balanced by them forgiving me for being a total jerk on occasions.