Really Simple Syndication is a web syndication format intended for subscribing to blogs and other news sources. Almost every blog and news site offers a RSS feed, even when bloggers didn't intentionally set up the RSS feed (popular blogging software such as Wordpress automatically generate RSS feeds by default). You can subscribe to RSS feeds using a RSS reader such as Feedly.
You Don't Need to Reveal Your Email Address
If you subscribe to a blog, news site, etc. via RSS, you never need to reveal your email address to the blog or news site. You only need the URL to their RSS feed.
This means you will never get spam as a result of subscriptions. Nor will your email address be sold to third parties, or stolen in a data breach, because the blog or news site simply doesn't have your email address.
You Can Keep Your Subscriptions Out of your Email Inbox
I don't ever subscribe to blogs via email; I don't like it cluttering up my inbox. I like to use emails for tasks I need to take action on, not for news that I don't actually have to read.
You Can Avoid Setting Up Some Accounts
I don't have an Instagram account, nor do I want one. However, I follow several people on Instagram via RSS feeds from RSSHub by using the url https://rsshub.app/instagram/user/<username>. And until recently I didn't have a Twitter account, and used a similar RSSHub url to follow certain people on Twitter.
Note that the RSS feeds generated by RSSHub are third party RSS feeds; if the sites they provide RSS feeds for, such as Twitter, changes their website, then the RSS feed from RSSHub may break.
No Separate Account Necessary
You don't need a separate account with a RSS reader to subscribe to blogs via email. Perhaps you value the simplicity of having one less place to check for your news.
How Do You Find RSS Feeds?
Yes, I could set email filters and have newsletters automatically skip the inbox and be filed into a separate folder instead. However I just like to keep my blog subscriptions separate from my email ↩︎