RX Subjects - are they to be avoided?

Question

I\'ve had a mini-discussion on the topic in another thread, and would like to have people\'s input on the \"bad\" sides of subjects.

People who frequent the RX forum

Answer 1

Seems like a lot of commenters are talking past each other.

Last time I used a Subject was when I needed to pass a delegate to a middleware in an initialisation call so it could call me back when something happened. The delegate had the familiar event args signature, but I couldn't use FromEvent because there was no event.

I didn't feel bad about it - I didn't see any other choice.

Basically I used Subjects only when I'm originating some event and putting it into the Rx world, or when I need a handle to some future subscriber that hasn't arrived yet. Subjects let me link what I've got now to a later subscriber.