We have a similar thing here but it's only for "deleted" topics and posts, which may have benefit for future reference for moderators and administrators (e.g. assessing member violations of Terms Of Service, and the counter to that, assessing complaints made by members about moderator interpretations of the TOS).
Locked topics, by the very nature of their being locked, will drop away in time.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)