... I do maintain a fake SB profile for research purposes.
I can tell you that as a supposedly 22 year old blond spinner in college and looking for fun older guys to help me, no-pic profiles don't motivate "her" to respond, especially when the guy sends a really stupid or crass message. "Her" profile specifically says "no married" and yet, about half the messages "she" gets are from married guys who either call it out on their profile, or volunteer it in their message. So complete honesty, or at least as much as you can share, is generally a good thing. Plus, if you are interested in having longer-term arrangements, lies will almost always end biting you in the ass.
If she wants to date (i.e.: fuck) a married guy, she will. There are plenty of POT's who may actually prefer it. But most SB's (and SD's) don't respond well to lies.
As for pics, I agree that for all of us, not just those who have a S/O, always use pics with location meta data removed and that have NOT been published anywhere else, like a website or social media account, or even a newspaper. And take them in generic locations, with the possible exception of famous landmarks not near you. For example, I went to Australia several years ago, and I use a pic of me standing in front of the Sydney Opera House, and I mention my international travels in my profile.
Life is good
The Cat