Lots of top-level comments talking about how it's common for newspapers, blogs, basically any _other_ type of web-page to allow edits. Sites like reddit and HN also allow edits in certain contexts/timeperiods. I think these are missing how Twitter is different and how this is a Pandora's box.

You can't stop allowing edits, and it will fundamentally change how the platform operates. I think it has a high potential for mis-use and abuse. Currently tweets are, if anything screen-shotted and edited. But if you have a link to the tweet itself, it operates as a source of truth.

I can't say I like this change.