Sunday Salon: is this the end for Petrona?

As a member of the Sunday Salon since it was first created by Debra Hamel and Clare Dudman about 4 months ago, and having written articles on other book blogs at that time to spread the word, I have been experiencing the group's evolution with interest. There are now more than 130 participating blogs. I feel that for me the time has come to take stock and question what I am gaining from, and giving to, the Salon.
As invented and presented by Debra, the Sunday Salon is an "informal, weekly, mini read-a-thon, an excuse to put aside one's earthly responsibilities and fall into a good book". And for the first few Sundays, this is what it was -- maybe half a dozen bloggers writing about and exchanging views, on a Sunday, of their reading -- sometimes about different books, sometimes about the same book if reading experiences either coincided or were stimulated by Salon posts.
I subscribe to the Sunday Salon in my RSS reader. I've therefore become aware that more and more posts are being tagged Sunday Salon but being written on other days of the week. These, and Sunday posts, are often not about book-reading, but about why the blogger was too busy or ill to read that week, or about other matters related to books but not about actually reading them. Given the increased membership of the group, and hence the greater number of posts to read, I begin to question how interesting I am finding all of this and therefore whether I want to be spending my time reading or scanning these posts, compared with reading about reading, which is what I like doing most in the blogosphere.
Of course, it is up to people to decide for themselves what to blog about. But time is very short, and I am thinking quite seriously of unsubscribing from Sunday Salon and instead subscribing on an individual basis to the half-dozen or so blogs that I've discovered through Sunday Salon to be very much to my taste (and keep my subscription to the blogs I already followed before they joined Sunday Salon - and which, as a result, I now read twice!). Then my Sunday (and other day) blog reading would return to the ruthless pre-Salon approach of frequent unsubcribes via RSS when the 'time taken--value obtained' equation tips too far in favour of the former. 
I would be interested in the thoughts and experiences of any Salonists (or anyone else familiar with the Salon) reading this post.

• Do you spend a dedicated amount of time on a Sunday writing a special post about the week's or day's reading?
• Do you regard the Salon as a discussion, i.e. do you read and comment on all the other Salon bloggers who post on Sunday (and on the days since last Sunday)?
• Do you write a post for Sunday Salon that you would have written that day anyway, and are in the group mainly to reach the particular audience, without much interest in the discussion aspects?  

Salonists' views on these questions, and any other views they may have about how Salon membership is different from following individual blogs of mutual interest, will help me to make up my mind one way or the other. Thank you!