You can delete your BuurtFix account yourself. You do not need the app installed to do it.
Go to Profile → Settings → Delete account. You will get an email with a confirmation link, and nothing is deleted until you tap it. That way someone who briefly has your phone cannot wipe your account.
Email us from the address you signed up with, to [TO BE COMPLETED — deletion address, e.g. privacy@buurtfix.nl], with the subject "Delete account". We confirm within 30 days.
Reports other people made about you are retained for as long as needed to prevent abuse — otherwise deleting and re-registering would be a way to shed a report. Those no longer contain details that identify you.
[TO BE COMPLETED — any statutory retention periods.]