Ad-blocking - given the current popularity of RSS, I don't know if it really makes sense financially for websites to do so, but I notice some feeds do inject ads. Some personal blog sites have very beautiful (or interesting) designs that I find myself actually enjoys poking around. e.g.: Project release notes on GitHub, which usually come with links to PRs, commits.etc, so I need to open several browser tabs to consume the content anyways. Some feeds are just better to be read in a web browser.

Some feeds only provide title/summary and not the full text article (yes, I know there are full-text extraction service, but last time I tried them, none of them was perfect, and I don't want to play the guessing game - 'Am I reading the full article, or a broken extraction?') Instead, I only use a RSS reader software to quickly go through all the unread items and send interesting articles to a read-later or bookmark service. Not sure if it's just me, but I have not used a RSS reader as a serious reading software for years.

Rss feeder