No; tokyodude is asking what happens if you request that (for example) Google erases your data, and he has your email address in his Gmail contacts. Does Google, as the data controller who ultimately stores tokyodude's contact list for him, then have to purge your email address from tokyodude's address book?
> Listen man, I read the GDPR document /once/ almost a year ago now, and I remember the answers to your questions off the top of my head. I'm not a lawyer either, I'm a software engineer.
This condescension is obnoxious and unwarranted. Just take a look at the complexity of the conditions at https://gdpr-info.eu/art-17-gdpr/ dictating when the right to erasure applies. Point (b) seems to suggest that it applies by default if the basis for originally processing the data was the subject's consent... but that the controller can override that if they have another legal ground for processing. So can they just argue they have a "legitimate interest", under article 6(1) point (a), in preserving tokyodude's address book? I have no idea.
Meanwhile, point (f), linking to article 8 about children, is saying - I think - that a data controller must honour an erasure request if it's about data they collected from a child, even if they have another legal ground for processing that data. So even if the legitimate interests argument above would hold, if you're a 12-year-old, I think you absolutely can demand that your email address be purged from tokyodude's address book and he can't do anything about it?
How about your actual emails to him? Can you demand that Google deletes them from his inbox? As far as I can see, the answer logically ought to be "yes"; Art 17 (1) (f) applies and I don't see any exception that would let Google wriggle out of the obligation.
But I'm not sure if any of the above, because this stuff is vague and complicated. If you truly think it's simple, I invite you to walk us through the answers to the scenarios I've explored above, supporting your assertions with relevant references to the text of the law. I do not expect you to be able to do so.