A fun reminder: You did post a similar thread a year ago! You wondered, then, why Sunday is very boring.
When people come at you with their worst, you should come at them with your best (advice given to Selena Gomez by her mother, quoted in Time magazine.)
The contention of the author might be indicating to the people going out on holidays or Sundays with their families and in that process giving less time to the posting activities in ISC.
The other reason could be the Sunday syndrome where we are inclined not to do anything till it becomes inevitable.
Thoughts exchanged is knowledge gained.
Non-violence is the greatest Dharma; So too is all righteous violence.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
Old members who may let the younger members of the family to enjoy (Like the author) might login to ISC during Sunday. Yet there are few active members like me who are present in ISC on Sundays too.
No life without Sun
What I mean is Sundays or any holiday is the time for the family interactions, need not be anything fancy for all of us but just simple quality time spent at leisure. This is the reason for me yesterday, I just visited the site, did one post. Some days, when work in light, I do spend more time on some Sundays.