What happened to the ability to edit your past comments? I was going to edit a typo in one of my comments, but there is no more edit button. How come?

good question. i noticed this, too.

Same. I spelled a model's name wrong and wanted to correct it.

Assuming that you are referring to the card comments/rating system then you can delete an old comment and provide a new one. Obviously if you just want to make a simple change you should copy old text and either paste it into the new one or, perhaps better still, into a text editor rather than type it all in again. Not as convenient as directly editing a comment but not very difficult.

You can find the delete option if you go to the Edit Profile tab and get the list of all your previous comments - each is accompanied by a pull down menu offering a Delete option. I only found it recently after several years wishing that I could edit a comment and then only after I had been told by another user where it was hidden.

If, on the other hand, you are referring to editing comments made as posts to the forum then you can edit them as long as there have been no latter posts to the same thread.

I am very familiar with forums. The mechanics are usually the same regardless of the forum. Comments mehcanics change a lot depending on who is providing them. That being said I did not realize you could delete comments till just recently. So I thank you for refreshing my memory on that one.

Also, your username is awesome @TheEmu