Maybe it's fair, but I feel they shouldn't have distributed it freely to begin with without making clear that it was becoming a paid product at some point. Now I feel pissed, irrationally perhaps, but pissed nonetheless.
I was relieved to see that they started charging for this!
I wanted to pay but didn't want the snail mail version.
I printed every issue on a A4 duplex color laser printer and it comes out very nice.
I paid for the next 12 issues.