I used to defend tabs for this reason, except I kept running into source code formatters/displays online that would attempt to display my code with the tabstop

I used to defend tabs for this reason, except I kept running into source code formatters/displays online that would attempt to display my code with the tabstop set to 8 spaces, which made it nigh-unreadable. While I run into fewer that do this nowadays, it still reminds me that with tabs, What I Write May Not Be What You See, which can lead to readability issues, which I feel is a solid enough point against tabs that I've switched. I write code so it is easy to read, and spaces are better for that than tabs, so now I use tabs. ¯\_(ツ)_/¯