Redlib does that but it’s a game of cat and mouse these days. Facebook fought off web scrapers and while Reddit is much less technically competent they’ll get there too eventually.

I assume those who were interested enough could whip out a script to do that easily until Reddit disabled API which is the moment I lost interest in the platform. I don’t know how people do it these days without getting accounts suspended for automated traffic but it’s something you have to consider and probably the reasons why such tools are not available widely.

Reddit won’t show you that your comment was removed by a mod and shows removed comments on user profiles (unless they had to be nuked for legal reasons). If you suspect you’re shadow banned or if your comment was quietly removed you have to check for that from a separate account in that comment thread directly.