Many pornographic picures are filtered out already by default but every feminine name is targeted on Global Search... And using the "filter Sensitive content" does not work. Durov should probably use some AI to immediately find out channels/pictures containing unsafe content to automatically flag them as inappropriate rather than leaving this to users reports. On Pic/Gif search => nothing pornographic Gif search and pic search are provided by serious companies that don’t allow pornographic content on their platform. That’s why they are safe.
How is this fixed? You may say that I can use spoiler format to hide a message content, but that isn't true for all kind of messages. For example I cannot do that in a voice message, a video message or a uncompressed media or PDF file thumbnail. They will always be auto-played unless the receiver has the corresponding setting disabled. So this feature is only partially implemented.