Currently Brave is developing a project called Brave nightly. Brave nightly would enable a Twitter account user to send Tip to another Twitter Account user. This is another milestone to Basic Attention Token since we all known that twitter is one of the most used application for Crypto-curreny believer. This is still on beta testing but this would be the start of Social-media Tipping powered by BAT.
Brave publisher might use the Tipping Grant for self Interest. Such as sending tips in their own Account. Another problem is lack of transparency to tipping System. Currently the tipping Systems for Brave is completely anonymous. There is no way to know who and much Tip was Donated to a certain publisher.
Another minor-con on this project is, Asian Countries still don't have access to Brave ads.
Basic Attention Token/Brave would revolutionize advertising to a new level. It will empower every user to earn not like in the current advertising system were the user are some what abuse.