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I noticed that you need to wait 12 hours to vote for the same doll in fashion show. Don't know how new it is, but I think it's a good improvement and much more fair.
I do like it because it prevents anyone from spamming any one doll with votes.
I don't like it because sometimes it forces your hand. For example, if two of the shown dolls are ones I already voted for and the third isn't, then it's forcing me to either vote for the third doll (whether I like the outfit or not) or refresh. (If I've already refreshed within the time limit, then I would have to go out of the fashion show and wait awhile and go back in.)
Still, overall I do prefer the change. :)