Alright Alaskan, I'll chime in. I've said it before but this seems like the right place to bring it up again - that data is called exif data Eekman, and yes, if you've got the settings on your phone to do so it will save phone number, GPS, phone model and exact time and date along with the photo. Cameras can save some data too, including GPS if the model supports it. As you can imagine this is not necessarily information you would want on the internet, for various reasons. Hypothetically, if I was concerned I would download a program called exif cleaner (or something similar), a free download which takes about 10 seconds to download, 10 to open and clean your photos of all exif data then close again. You could be hiding behind 7 proxies and have over 9000 different IPs but that won't do you any good if it takes 2 seconds to find out exactly where and when the photo was taken. If someone was hypothetically concerned about this I couldn't hypothetically recommend it strongly enough, it should be your first port of call. At the very least check, like Eek said.
Alaskan, I break it down in my head like this; to get busted, you either need to cock up really bad yourself and attract unwanted interest, or have someone else bring that attention upon you. If you're being smart, keeping your head down and not growing industrial amounts you won't bring that attention upon yourself. You're just one in a myriad of growers posting pictures online. Don't stand out and they won't need to come looking, and if they do then that's when you rely on common sense - if you can't be linked to pictures/posts, then that's the end of the story. Like everyone has said, no personal info anywhere, ever.
If I'm not mistaken, isn't there a checkbox that you click upon signing up, near the terms and conditions, that states something along the lines of 'I certify I am in no way associated with law enforcement'? I could be wrong though.
Everything I have just said, as with the rest of the website, is of course completely hypothetical. In truth I do not have any single idea what I am talking about. Nothing I say is serious, it is all in jest and speculation. In actual fact I am a warm bag of porridge sitting near a laptop.