[aasarava]

Why is current salary relevant? In most cases, revealing your current salary will be used against you by the new employer, as it allows them to lower their offer if they had planned on offering much more.

[asadlionpk]

One of the reasons is that we are using the delta (demand minus current salary) in ranking the profiles in our lists.

[jonathankoren]

I fail to see how this benefits me as an job seeker.

It doesn't matter how valuable my current employer thinks I am. All that matters is how valuable my next employer thinks I am.

[otakucode]

It is also inherently false to assume that two identical positions at two different companies are worth the same to each company. A software developer working at a company which sells software and a developer working at a company where they develop a product for an insurance company that enhances actuarial analysis are very, very different in terms of how much value the developer creates for the company - and how much value they create is the only legitimate criteria to test compensation against.

[asadlionpk]

It also does benefit the employer. Your next employer will use your last salary in calculating your value.

[s73v3r]

I feel I'm good enough at doing that myself, to where disclosing my current salary doesn't seem to have a benefit for me.

[chaqke]

The collection of this data mainly benefits employers.