This is a good idea! If people always ask here if they are unsure about making a topic, it will cut down on excess topic spam.
So here's how I'm thinking it will work:
Someone will propose an idea for a topic.
I have an idea for a topic! Here it is! What do you think?
Then people will reply with what they think of the topic idea.
That's a great idea! You could use it for this and this, too!
Is that what you meant for this topic, Spector?