From the blog in question:
"I just love jazz"
"exploring my favorite records of the past is a thing I want to share with you"
"Keep your comments coming in order to let me know that my work is appreciated."
(emphasis added)
I have no doubt this is a well-intentioned person, a "true fan" of the music, whatever that means.
BUT: "my work"???
C'mon. Ripping an LP (even carefully, at high quality) and posting to a blog does not consititute "work".
Any dipshit with a sound card and an internet connection can do that.
So, what bothers me is this: it takes a certain amount of arrogance to unilaterally decide that taking ANY (yes, even OOP) record and posting it to the entire world is OK.
If this (or any other) blogger made ANY attempt to contact the artist, record label, copyright owner, etc., PRIOR to posting (and documented it), I might feel differently.
I see no evidence of this. I vaguely recall one blogger mentioning that he had contacted Anthony Braxton regarding some OOP material, but he/she is certainly in the vast minority.