If your profile picture contains text or lettering, the zoom function allows these texts to be clearly readable to a greater extent. This is important to effectively communicate your company name or message.
Enlarging the profile picture allows you to highlight important trademarks or logos. This strengthens your brand identity and ensures that your brand elements are well visible.
If you pride yourself on the intricacies of your profile picture, such as intricate illustrations or creative elements, enlarging the picture will allow other users to better appreciate those details.