I hope this doesn't get flagged, too. But apparently I'm really bad at not looking like I'm selling myself when I answer the ISO ads. Any tips for how to answer without looking like I'm posting an ad?

Do not include a photo.

But, please be sure to include your link.

That's what the guy is looking for, so feel free to make your case that you are the girl for him. As Board Admin stated, just don't include a photo as that will make it an "ad post", aside from that you can talk yourself up as much as you want when responding to an ISO post, just don't start any threads of your own tooting your own horn, those posts will get deleted as ad posts.