Free for all sites certainly are a waste of time to post to many blogs

IF you have started a site without having any vision then you are surely wasting your time.

I have seen many people who start multiple blogs at the same time and publish posts on them regularly.

It’s a free of cost service. They don’t know what they will do by publishing on them regularly.

So run only those sites which can make you enough money in future. or at least few bucks in starting to run the business smoothly.