On election day in the U.S., I saw this particular “I Voted” sticker online:
(@KQED) November 04, 2014
The sticker has “I Voted” in three languages: English, Chinese, and Spanish. The statements in English and Spanish seem very positive and upbeat, with exclamation marks. The Chinese translation 我已投票 comes across as happy as your computer telling you its virus library was updated. The statement 已更新 is used in software to mean that it has been updated. The use of 已 makes the statement rather formal and boring. It makes voting seem rather mundane, which is probably the opposite of what the sticker is supposed to project, given the statements in English and Spanish. 我投票了！ also means “I Voted!” and sounds much more exciting. Plus, it also has an exclamation mark.