Hoping you will emphasize reciprocation. I am highly suggesting whenever someone exchanging photos, hope you will detect their chat. If they not sending photos right after someone's send already, you will need to comply reciprocation on sending photo. If they can't do right away, suspend their account. We can understand if they don't prefer us but it's kind of ruining our sanity if after we send photos we're being blocked. We're left hanging and unsecured. Hope you will implement this.