RSS being pull and not push is a great feature IMO.
You check up on your feeds when you want to, if you never do it might not really be worth your time or you might not enjoy it.
If you really want some kind of reminder then some readers like tt-rss can send daily digest.
I use FreshRSS which is similar to tt-rss. I really think I should turn on email digests in it because I often find myself forgetting to check my reader some days and then it feels cumbersome to try and "catch-up" with the feeds.
I actually really like the idea of being able to convert newsletters into RSS feeds. I have a decent amount of newsletter I currently get and for a lot of them the only reason I have them in newsletter form is because they offered no RSS option. So if I wanted to stay up to date one of my only options was newsletters.
