Can this be done?

This is to the people that run a2k.
When we respond to a topic, it goes into a list named "my posts" that I can click on (but you already knew that).

Is there any way you can do whatever voodoo you do to make it so we can remove topics from that list or deactivate them?
That way, a post where I answered a simple question can be removed, and topics I am really interested in will always be on the top of the list.