Yes, and what I said that the person with no computer send the photo stream to someone else who does.
No, what you said was "the receiver can download the photos onto their computer". "Their" being a pronoun referring to the object of the sentence, in the case the receiver. One and the same person.
If a person's only device is an iPhone and they delete photos from their phone, are those photos also automatically removed from their iCloud?
Yes. They will be moved to a "recently deleted" folder immediately. If this is the case, they'll still take up storage space on the device until the next stage.
They will be deleted permanently after 30 days.
by the update. So much space. Welcome back lost apps 
