If anything, shouldn’t it be encouraged, and even automated? I’m including even the ‘old’ stuff from reddit here. Reddit shouldn’t be the absolute owner of the content submitted by users. When I migrated here, it wasn’t because of me being against reddit users, but being against reddit the company. Copying the content here actually hurts the company in sense that they don’t get to then gatekeep the crowdsourced content.
As long as you aren’t claiming that you’ve made something that someone else made, I don’t see a problem with it.
If you happen to see a news story break on Reddit, I hope you will post it here.