You mean GDPR "General Data Protection Regulation"...... This only really apply's to any personal info, or in the case of this site info that could lead to revealling who the person really is as this is mainly a site where people are anonamously using user names not there real names.
Accounts do not have to be deleted, only any personal info removed, if the case is as above stated by
@STLcardsWS it messes with the flow of info in the forums, an exception would be if the user has reveled any perosnl info, or info leading to who they may really be> in this case the personal info would have to be removed> or what the user considers to be personal info. In the case if the user used thier real name then this would have to be replaced with "Deleted Account 1 " or something like that to maintain the threads.
In this case the email to the account has been removed > GDPR complied with, and nothing else needs to be done. But TBH you have to be stupid to be using your everyday personal email address...... I have about 4 -5 emails