forum thread usage icon question

[longboarder324]

Quick question about thread title page. What does a closed envelope icon with a black dot in the middle represent? Looked through FAQs but couldn't find an answer. Thank you

 

[jewcy240]

the black dot means that its something you've posted in

 

[chris4869]

There's an explanation at the bottom of the page. Scroll down.

 

[longboarder324]

thanks guys. it seems obvious now.