Do you mean web.archive.org ?
Everything is archived some place or another anyway.
The point of erasing your content on Reddit is to lower the value of the site and be a pain in their ass.
People shouldn't erase their account. Not ever. Not until you are sure they won't keep restoring your content. Keep erasing your restored content, take screenshots beforegand, and report them under GDPR / Cali law. When they'll be forced to comply, then we can erase our account.