From what I've seen, generally speaking, yes. Even more so if the site wasn't submitted by the owner.
Self-promotion has even always been explicitly allowed here, but I believe the guidelines contain some verbiage to the effect of "your primary activity here should not be self-promotion". I have no official info, but just from observing things over the years, it appears that accounts who promote their own content overly frequently, and/or only post self-promotional content, are the ones that get shadow-banned or set to auto-dead status.
Self-promotion has even always been explicitly allowed here, but I believe the guidelines contain some verbiage to the effect of "your primary activity here should not be self-promotion". I have no official info, but just from observing things over the years, it appears that accounts who promote their own content overly frequently, and/or only post self-promotional content, are the ones that get shadow-banned or set to auto-dead status.