MicrostockGroup

Don't worry 'bout it, you have no security whatsoever anyways, thanks to broswer usage terms and crawler bots. They are probably crawling into your ass and out your nose right now as we type. Just go ahead it's too late alerady to cocoon.

I am a bit worried at submitting ID to new / unproven sites.

Otherwise, SS has been around for many years and no one ever reported any identity theft problem, so in the end we must trust them.

There are a lot of equally risky activities, such as leaving ID copies to the public administration or passing through airport security. SS is not the main issue for me.

I know it doesn't seem like it, but becoming a contributor at these agencies is similar to applying for a job at any company. You're applying to become a paid worker, only under a sort of freelance contract rather than an on-site salaried employee contract. In either case, you might be asked to provide personal information, identification, etc for tax purposes. Some jobs even require you to submit to a background check.

Basically if you want to be paid by a company, in any capacity, it's not unusual to be asked to provide personally identifiable information.

I think SS is also accepting driving licences. And possibly other clearly identifiable documents.