I've seen 5 cases of pedophilia involving men offering child pornographic content or commenting that they abused a minor and considered it a fetish. but obviously not accepting their invitation, they block it and the conversation disappears, and so do the files. the network should not allow this and leave the conversation still saved for those who are blocked from reporting.
I think it is extremely valid unless the owners of grinder and other users are in favor of pedophilia and leave pedophiles free on the app,