I haven't; however, I haven't been looking. I would believe that with them you, perhaps, need to look at what is happening with your work, how much protection, if any, do these sites offer for your copyright, are they syphoning off the best bits and slightly altering them for their own use?
Usually online, if it's too good to be true then alarm bells should be ringing. There's plenty of great info on structuring content and writing available without having to sign up to a course. My guess would be that maybe not a scam, but you would get some perfunctory boilerplate instructions, and because they've got your email, lots of spam.
They may also try to upsell you other products and services. It would be good to check reviews of the aforementioned courses, but most reviews for online reports and stuff are spam anyway... You can't win, but personally I would spend time looking for paid stuff that has testimonials and stuff rather than free - you usually get what you pay for.
I think its not real when a company from england sends you a email saying you won a million pounds. So if you get that email watch out and report it thats what I do.
I think in this materialistic world...nothing is FREE :) They will either sell your information which you will provide at the beginning of the FREE course so, watch out!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.