Why not point out the offending services? This reads more like an ad for an app

It is almost impossible to prove this, and it would constitute as slander. However, what I wanted to achieve is happening. Other people are comming forward with their own personal experiences and pointing out different services.

https://www.facebook.com/goran.duskic/posts/1020050244097859...

After all, this is companies blog, and we can help you build competing services, so I cant really accuse anyone publicly of wrong doing.