So I posted this last week in the Site News area but that gets little traffic. I'll post it here instead.
We now have the ability to @mention members in the comments like you can on all other social media sites. You just type the @ symbol and begin typing the name of the member you want to mention and you'll get a list of members to choose from.
Why is this important?
For one, it helps knowing exactly who a comment is directed at.
Secondly, I encourage you to use it to help with moderation. If you @mention me I will get a notification and I can go to view the issue. I'm still available on PM as per normal, but if you're concerned about something and you don't want to have to go through messaging me then you can use the @mention.