I have no votes in uservoice, so I cannot post this
Not true -- you have 10 votes just like everyone else does. Remember, you can take votes away from something you voted on before.
If you really don't think your idea is worth at least 1 of your 10 votes, then it sounds like it's not really something you'd want me to be spending my time on anyway. (in other words, you'd rather I spend my time on the things you have your votes in.) Therefore, it doesn't hold much weight.
Regardless, you can still create a 0-vote idea by taking one of your votes away, creating the new idea with that vote, then move that vote back to the original idea.
1. Make an Alt
2. Make uservoice
Doing so invalidates all of your votes from all accounts.