I believe Aeon should consider changing its ticker from AEON to XAE to conform to the ISO 4217 standard for currencies, much like XMR (Monero) and XBT (Bitcoin, on some exchanges like Kraken).
I have always found the 4 letter ticker a bit strange, and would prefer 3 letters for Aeon's ticker. I hadn't thought about exchanges being reluctant to change a ticker, but if they can be convinced, there's little to loose I guess. It will definitely make our crypto-currency easier to Google: Aeon yields a lot of false positives (41 million), while XAE … currently "only" shows 1.8 million hits.