But that really only helps low pay was the reason for hopping. The comment that sparked this discussion talks about a bad environment etc. as a reason for hopping. Wads of cash won't help retain an employee that's obviously bad at judging whether they'll be a good fit at an employer.
Just to point out. At my current workplace I got a huge pay increase only in one situation. „When I said I quit”..
Employer runs a business and will do w/e is best for him money wise. If ppl want to work for 50% what they are worth - employer will alow it (bad employer).
Ppl tend to quit such places because they see no options to advance.
Employers rarely learn from such cases. For me its the issue of poor middle management not managing career of pupils correctly.