If you ask then just don't.
Why do you expect that it would be interesting for others if you don't have something that's interesting for you to write about? Or something that you know in depth and you know most of the potential readers don't?
The right question would be something like "I have a lot of material about X, Y and Z but I can write only about one, let's vote."
And honestly, the first thing I thought reading your question was "somebody running a mechanical Turk web content farm asks for some new spamming ideas. Now he'll just collect the list of the answers here and give it to his slaves. On the second thought, he won't even bother making the list, he'll just send the link to the answers. The question was whole six words."