Basic forum usage
 

Hi!
Ok, I registered, looked around at various forum titles/topics, read some 'stickies' about how to use the forums.
Wrote a couple of posts, and some replies.
But, I have some simple holes in my 'newbie-nowledge'.
What are the icons at the bottom right side of the posts? Sometimes there are 3, sometimes 4.
An exclamation mark in a triangle? - Report?
A solid black cartoon bubble? - Reply (yes it is!)
A black & white cartoon bubble? - Don't know!
A pencil on a square? - Can re-write (edit) if unanswered? - Unsure? - Just did it, ok!
Also, is it possible to reply without quoting the post you are replying to?
How do you reply to a reply, not the post?

Seems I have as much to learn about using the forums as fixing my RX-7!