I can absolutely corroborate what you are saying, and sympathize with your troubles. DreamHost shared hosting is only for small hobbyist sites - once you get a little traffic they’ll gently break the news you you need to upgrade to more expensive services. Recently it has gotten a lot worse. Their tight resource…

Dreamhost shared hosting is poor unless you are running at most a handful of small sites. They gloat about giving you the earth (unlimited domains! unlimited email! unlimited bandwidth), but have strict process limits that will not work for anything other than small hobbyist sites. This is how they “gently encourage”…