The only time I got a photo in DMs was when Nicole switched from text to photos.
In all seriousness, disabling Pictures in DMs will prevent Spam, Trolling and NSFL pictures that could be sent to bother people.
In my opinion, there is really no use case for pics in DMs for Lemmy.
You can embed external images in Lemmy. Unless image proxying is enabled by the target’s instance, tracking individuals is possible.
e.g.
