Hi @crypto.piotr, thanks for this information. Yes, it is a question I also asked myself, if to vote from my blog, comment, make resteem I only need my PostingKey, then why I must enter my active key...It is a valid question. I will check @xpilar's post, to see the justification. Although if I tell you the truth, I do not have any kind of distrust with xpilar, because, so far what he has done has been giving and supporting everyone, for a long time.
Resteem this post.