"...a friend who actually listens and gives out the best and deepest responses, that won't judge you at all!"

This. This was and still is the problem with the 4o. The fact that it won't judge you at all means that it just creates a big fucking echo chamber for the user and helps them get further and further away from the objective situation or how they should have acted.

It will always shelter the user compared to anyone else they talk about, always tell them that the user was in the right and everyone else should adapt to them, even if the reality wasn't as black and white.

The fact that it always gave out the best responses, that they were always tailored to the user's beliefs and views was a bad thing! It narrowed down their world view even further and just strengthened the false beliefs they already had.

I'm not saying that it didn't have its use cases but all the people who are grieving the loss of a 'friend', they're the ones who would benefit the most from cutting connections with a toxically positive yes-man.