Don Jazzy can no longer follow fans on Instagram because, the social media policy says he will reach his threshold of 7,500, as he presently follows 7,450.
Instagram user policy states that a user account cannot follow more than 7500 people. 'In order to reduce unwanted spam, Instagram has recently placed a cap on the number of people that any account can follow at 7,500. This helps ensure that users do not violate our Community Guidelines. This change affects accounts that currently have less than 7,500 followers', the social media company announced a while back.
The Mavin music producer made this announcement on his Instagram page, with the caption "#DoroAnnouncement", coined from the infectious hit single by the the various artists under the Mavin record label  titled Dorobucci.