Question about forum

[magicsiew]

Hi, I want to ask some rule about the forum.

First, what is the meaning of exclamation mark beside the post? I posted 1 discussion before, which is completely relevant and contain no offensive issue, but exclamation mark appear beside my post. I understand is exclamation mark plus with a lock sign indicate the post is been locked, but what about just an exclamation mark?

Second, I tried to post a diagram earlier to answer a person's question. I have successfully attached the file, but how come it wont appear in the discussion board later on? I have tried few times and the diagram wont show.

[JackBean]

if you mean this about20140.html
that's sticky post AKA it stays on top, no matter how many topics has been posted or how long nobody posted into your topic

[magicsiew]

I see, thank you. Then how about attaching image file? I tried with JPEG file few times, but it wont show after I attach the file.