Author "name ambiguity" is a big problem in the research community, with many researchers having the same or similar names. Unique author identifier systems have been developed to address this problem. Some advantages to registering for a unique identifier are
In addition to the Works section, the ORCID profile has places to list your employment history, education and qualifications, memberships and service, funding, alternative names that you've published under, keywords describing your scholarly interests, additional email addresses, and links to your websites or other profiles. You can also easily get html code to display your ORCID ID as a link to use on websites or get a QR code that will link to your profile. Adding your publications automatically from other systems is described more fully in this help guide.
What's more, if you connect your ORCID to Scopus and Web of Science, not only will your publications from those databases come into your profile but your ORCID ID will filter back into the databases so that when your name appears on a publication, there will be a link to your ORCID profile.
Example of ORCID ID in a Scopus record