Kobo throws out self published books

[Zeb_Carter]

FWIW, here are Amazon's KDP guidelines:

https://kdp.amazon.com/self-publishing/help?topicId=A1KT4ANX0RL55I

Note the following, first paragraph. It is vague, and probably intentionally so, but it covers Amazon. Emphasis is mine.

One is an outright lie, the next is really vague, the rest are necessary to stay in business...

Pornography
We don't accept pornography or offensive depictions of graphic sexual acts. (Bullshit and they know it)

Offensive Content
What we deem offensive is probably about what you would expect. (A vague statement if I ever read one)

Illegal and Infringing Content
We take violations of laws and proprietary rights very seriously. It is your responsibility to ensure that your content doesn't violate laws or copyright, trademark, privacy, publicity, or other rights. Just because content is freely available does not mean you are free to copy and sell it. (Better, more concise. They would have to take this stance to stay in business)

Public Domain and Other Non-Exclusive Content
Some types of content, such as public domain content, may be free to use by anyone, or may be licensed for use by more than one party. We will not accept content that is freely available on the web unless you are the copyright owner of that content. For example, if you received your book content from a source that allows you and others to re-distribute it, and the content is freely available on the web, we will not accept it for sale on the Kindle store. We do accept public domain content, however we may choose to not sell a public domain book if its content is undifferentiated or barely differentiated from one or more other books. (Again, if it's free why try to sell it - a business needs to make money to survive.)

Poor Customer Experience
We don't accept books that provide a poor customer experience. Examples include poorly formatted books and books with misleading titles, cover art or product descriptions. We reserve the right to determine whether content provides a poor customer experience. (They really don't care about this, I have seen some pretty poorly formatted books on KDP Amazon. Of course those were the ones being given away and maybe the authors were experimenting with formatting.)