Wow, that's awful -- and an extreme outlier. Most plugins are free. And given under the hood Obsidian notes are just markdown files on the local filesystem, backups can be managed by git or TimeMachine or rsync or whatever else you might use on other directories. That's not to discredit your experience, just speaking up for the sake of others who might be unduly scared off.
Sure, this one had a free version and it was great. Except after a few weeks Obsidian started behaving weirdly, and was 100% reproducible by enabling or disabling the plugin in question. And then I noticed that some of the markdown files were modified (sections deleted) - but I hadn't noticed immediately, so they'd had edits after they were modified - hence the tedious manual merge.
So it may be "just this one plugin", but Obsidian is so important that I'm just not willing to risk it.
