pre-acquisition there were frequent Twitter outages. I remember one particular lengthy outage during my brief tenure as a moderator in the Twitter subreddit. I'll state the obvious but it's not entirely unexpected for complex systems to encounter failures. example from 2021: https://variety.com/2021/digital/news/twitter-down-outage-12...
Yes, it's certainly not unheard of; early Twitter featured the "failwhale" pretty regularly.
There was a massive time period between the failwhale era and the acquisition. Like 15 years or a bit under?