First of all, having a Google Scholar profile requires a Google account.
There is no technical necessity for this, Google already indexes my papers and other databases (like the aforementioned dblp) manage to create per-author pages just fine without authors having to have an account.
But, of course, this is a great way for Google to tie more people into their ecosystem -- few kinds of pressure are as effective as when this directly affects hiring decisions.
First of all, having a Google Scholar profile requires a Google account.
There is no technical necessity for this, Google already indexes my papers and other databases (like the aforementioned dblp) manage to create per-author pages just fine without authors having to have an account.
But, of course, this is a great way for Google to tie more people into their ecosystem -- few kinds of pressure are as effective as when this directly affects hiring decisions.