The irony is that Google have also participated in acquishutdowns and data deletion. They still have the Deja archive online, but I think it's reasonable to worry whether they might just bin it at short notice like Google Reader or Wave.

"Never trust a corporation to do a library's job" https://medium.com/message/never-trust-a-corporation-to-do-a...

An example of acquishutdown from HN: https://news.ycombinator.com/item?id=8472047