My general feeling towards polls is that I never give an option that I won't be comfortable implementing. So, I never have too much fear about being bullied into something I didn't really want to do. Plus, sometimes I can use the options that weren't chosen for What If? posts, which can be kind of fun.
The one time a poll result kind of surprised me, was when I let people choose what Wren was going to look like. I had three options, with one being a pretty traditional, pale redhead, who I was sure would lock down the vote. Instead, everyone pretty overwhelmingly picked the version that now exists in-game. Still, even that made for a fun surprise, and a more interesting visual contrast between her and Ashe.
The bigger problem is that, since I'm running polls for both Friends Indeed and Friends in Need, I have to reckon with what happens if the vote splits. If it's an outfit poll, do I do two outfits and let the players choose in-game? Do I do one for FiN and one for FI? Do I do a run-off between the two most popular options? It's a situation that I haven't found myself in yet, because opinions have always aligned between platforms. But, it seems inevitable that it happen eventually. So, I'm not sure how often I want to spin the roulette wheel on that one.