I propose a white list option for users so that they can add digiasset's unique id to their list.
The Diggiasset issuer can put the id on their site or other social media sites. In text as well as in QR format.
Scanning QR code will make adding the asset to whitelist user friendly.
Interested users can scan the QR code add it to their whitelist.
This will protect the users from being confused and help the efficient use of wallet.
Any spam or similar looking asset in his/her wallet won't show up. Only the the one's that user allowed.