"BUT I CLEARLY DID THE SURVEY WITH 28% (TWENTY EIGHT). Swear to God, no lying!"
You weren't seeing things. 28 % has been mooted. Many freelancers have been asked about this one - **edited for Community Guidelines**
I don't know who would go for 28% - but if this was enforced, then I reckon everyone in the writing and translation sectors would quit. I would not be able to do it. I already pay nearly 25% in tax (French law) on every job I do. So a hike of this sort would be impossible for me to continue on this sort of job platform. I have found that a little intensive, personal marketing (nothing to do with Upwork or Elance) has landed me two very well paid gigs - temporary admittedly - but at least for the next three months, I can breathe easy, and there is no JS threat hanging over me.
"I don't know who would go for 28% - but if this was enforced, then I reckon everyone in the writing and translation sectors would quit."
I certainly would. Between that sort of gouging and German tax it simply wouldn't be worth bothering. Considering the service and features we get here I think 10% is already quite high enough, thanks very much.