Dear @drsinmongwong, thank you a lot for your support and your tips!
I've updated a bit some of my latest posts with disclaimers/sources, and I will make sure to pay much more attention to this issue in the future.
I'm looking forward to your future articles, I'm following you.
Also, I admire your commenting skills, I think that they are at least as important for Steemit success and enjoyment as posting skills.