Would use of social media would help to identify a customer as being potentially challenging?

Yes, Social Media is a challenge.  Why?

It is a powerful hub in the business world.

It is because advertisements are direct to the public and customers are key to business.  Customers communicate different views and it can be read anytime hence customers can be identified as being potentially challenging.  They convey what they feel and from this you can identify your customer too.  Use of social media is key to business and an enterpreneur.

Products bring the business what they want through action appealing advertisements.  It pays to use social media in business and identifying customers.

As you see a lot of people do online shopping on daily basis. So, surely would also help a lot.

yes..! Its a challenge. A lot of people are nowadays selling and purchasing through online business terms. Social media is also playing a key role in business. Through it you can deliever your message direct to the customer by pasting your" Ad " in a proper way and answer/reply to all customers as per there demand.