Is share-ask.com Safe?

This website is a cheat ! They advertise on various blogging platforms and blogger communities asking people to write Guest post for them for nearly 1000 words. I also fell into one such trap. I sent them a write up for a guest post in 1000 words. At first I was promised a n author's bio and a do-follow link back to my webprofile. As a writer of 1000 original words high quality content I deserve at least this much recognition. All was good and they sent me a preview link with my content and my detail as well. After a few months, I checked back my article to link it to one project and I saw that they had attributed the article to themselves, removed my author's bio as well as the links. When I contacted them as I felt cheated, the webmaster was an extremely rude person who said he can give me a no-follow link only. This is NOT WHAT I WAS PROMISED! this company uses false lures and baits to get content writer's to put in their hardwork and then cheats them by taking away the recognition. THIS COMPANY IS A FRAUD. Also the website admin was actually some Indian guy using a false american name. CHEATER! THEY DO PLAGIARISM & CONTENT RIPOFF