Those features are integration with listed.to and multiple editors (of which I liked the spreadsheet one the best). But with the upgrade to version 3.5, the spreadsheets became extremely slow to open and it didn't seem to be a known issue. I didn't expect to be able to store and edit spreadsheets on SN at the beginning so it's not really that crushing a loss. Ditto with listed.to. I had never heard of it before and, as you can see, Blogger does a fine job all by itself for short form blogging like this.
I'm not against spending money on software and services. I do all the time. This isn't about "stuff should be free", this is just a value proposition for me. SN isn't cutting it because it's very costly to pay monthly and the only two longer terms are too much money for me to outlay for a few small features and also be trapped when something breaks.