Is it worth it in 2017 to buy services like "placement of the site in 4000+ directories"?

Question

Search Engine Optimization

Is it worth it to buy services like "placement of the site in 4000+ directories" in 2017?

Answer 1

only if you are ready to pay later for "removing unwanted links"
and yes and no those thousands, in any subject, it's good if a couple of dozen

Answer 2

Not worth it even 5 years ago. You get junk links.
Although it made sense to manually run.

Answer 3

not worth it. then it will be almost impossible to clean up the reference mass.