I'm a big fan of plain text accounting also. Like the author - I started 10 years ago (mine from 2015). I use hledger mainly and also wrote converters for bank I use (xlsx to csv).

It's crazy to see just how much money I've paid Netflix since 2015 (and I'm a sub since 2011). Or Starbucks (which I rarely go to). But it's very powerful. One thing I've long wanted is better visualizations.