I think the advice you give is interesting, though i'm more curious to hear why you think people should use a recruiter in the first place? I can see the potential training or retouching of a CV, but i feel somewhat confident that i got that right. So then, what's left?

And isn't the harassment a trade-off for, as what i perceive, being too lazy to find a job yourself?

Assuming you are dealing with a relatively decent recruiter:

EMPLOYER BENEFITS

1. Access to candidates who aren't active on job boards.

2. Significant reduction in the amount of time spent screening candidates.

3. Some companies want to keep a low profile and don't want to advertise the fact that they are hiring.

EMPLOYEE BENEFITS

1. Good recruiters will have the ear of the top CTO's & Directors so your details can be put directly in front of the right people.

2. A huge amount of work isn't publicly advertised so you need a recruiter to connect you to said roles.

3. Career & CV advice. Recruiters should be advising you on what you can do to improve your chances of getting a better job or salary.