This is a bit of a meta comment (not commenting on the content of the article but the tech that the website is built on):

http://txti.es seems to have similar goals to https://itty.bitty.site but the former appears to use a database that may or may not delete content. The latter does not store content so it could potentially live longer.

See this related HN discussion: https://news.ycombinator.com/item?id=17459204