As occasionally takes my fancy, I looked at blogs other than those of friends. I did just that a few moments ago. Not one on the page was a personal post, that is, excluding the ones in other languages I could not quite fathom. The blogs were all selling something. I am not sure that the unfathomable ones were not doing likewise, it looked suspiciously like it.
Don’t the on-line sales fora that exist provide enough of a sales arena for people: it does not seem so. I guess you try every avenue to sell your wares if you are trying to open up a market place for what you have. It does mean though, that the blogging arena gets clogged up with desperate sellers.
There has been a regular flow of marketing attempts masquerading as blogs for as long as I can remember on BCUK. It can only get heavier as the economies of nations contract.