Promotional emails with symbols

As Spam filtering in emails becomes increasingly efficient the promotional space in an inbox is critical to grab the attention of the recipient.  This is increased on a mobile where there are a limited number of emails at any given time and attention is reduced further.  Some companies are now resorting to using images such as stars in the title banner to stand out from the crowd and ensure they don't make their way into the waste basket.  But do I want this, is this aiding my customer experience and my perception of your brand and your proposition?  If this becomes mainstream my inbox will become overwhelmed with this imagery.  Presumably it is only a step before I have sneering meerkats animated in my inbox next to talking bulldogs.  My customer experience is challenged enough by poorly crafted emails with incorrectly targeted content it does not now need a visual assault in the process making matters worse.  Stop using the symbols and keep emails to the point minimising wasting any of my time.