Besides Reddit, Crypto Twitter was very vocal.
So vocal in fact that the man himself was quite annoyed to constantly being told that UST can't be stable: https://twitter.com/stablekwon/status/1462063962506338318
Do Kwon in general was a red flag. There are a lot of strong opinioned and self confident people in crypto. But when the representative of the crypto project is a toxic participant of the space, you should think really hard about putting your money into such a project.
For example: https://twitter.com/stablekwon/status/1396735774737928192 (note, this tweet was after the whole disaster, losing billions weren't a humbling experience for him).
If you decide to put money into crypto you need to do your own risk management. I especially look how dissenting voices are treated.
A good starting point is Eric Wall https://twitter.com/ercwl. He's not a maximalist of any coins and as such is often very critical of projects and gets a lot of flak for this even though he usually has a thorough explanation how he gets to his conclusions.