[legionofangels]

You don't need a mod.

Admin CP > Vbulletin Options > Poll and Thread Rating Options > Set the first option to 0 for unilimited possibilities

Admin CP > Usergroups > Usergroup Manager > EDIT Unregistered/Not Logged In > Poll Permissions > Can Vote On Polls switch Radio Button To Yes

I don't know why you'd want to do the former though, with 70 options on a poll you'll have to scroll and work to even figure out which option or answer is in the lead. I mean the poll sections are like 30 pixels in height and the monitor I'm on has an 800 pixel height, minus the browser toolbar that's probably 700 divided by 30 is like 24. Meaning that if you use over 24 options, they won't even all fit on my screen. I recommend setting a value like 20 so that people don't go overboard and even on huge boards I cannot discern the necessity of adding more options than that.