I have been thinking that there should be an option to restrict the right to vote to certain groups only. Recently someone had a problem that people create accounts to manipulate prestigious polls. If only members of the @trust_level_2 group were allowed to vote, his problem would have been quite solved.
The syntax could be something like this:
[poll voters=trust_level_3,translators]
- Transifex is awesome!
- Transifex could be better.
- Transifex is the worst piece of crap I've ever seen.
[/poll]
This feature would offer an easy solution for @leog’s case, too of course.