My most of posts are deleted from 2017. I accept those posts are copy and pasted from Social Media and other sources. At that time I was not aware of such things. In 2018 I realize (I am active member of forum) that I should quote and add source name in copy posts. Like I did here https://bitcointalk.org/index.php?topic=1669443.msg50895570#msg50895570
https://bitcointalk.org/index.php?topic=5138744.msg50881855#msg50881855