Well ...
After nearly 2 weeks after rejoining her site (I was a member for awhile many, many years ago), I think I've accessed only a couple dozen photos total -- not sets mind you, but a couple dozen total photos -- and downloaded not even a dozen, and have otherwise been constantly denied any access to the site. I'm not using downloader tools or anything, and even disabled various Firefox pre-fetching and other extensions to no avail. My account has been locked out 3 times now for anywhere from 1-4 days each time.
This last time I tried to click through photos slowly, and then accessing my off-line Firefox cache with Cache Viewer to drastically reduce the number of hits to the site in an effort to avoid tripping whatever that locks my account as some sort of bot or downloader program. At this point, I have decided to just load a plain Firefox with nothing, not even NoScript or AdBlock, under a Windows XP VM and will attempt to try again once my account comes unlocked.
But I have to say, I now honestly think the site is built for only on-line viewing, and only a few photos per minute, and definitely not for someone like me. I am someone who constantly travels and does not have an Internet connection, or at least not much of one speed-wise, in various, remote locations. I like to keep a few dozen pictures -- not a few dozen sets, but just a few dozen favorites -- on my laptop and tablet. I am really having great difficulty doing that, much less not being locked out for days at a time.
Just a warning for those considering her site. I'm at a loss here. I honestly and fully respect Chloe's right to copyright protections and preventing bots from scrubbing her site for pictures. But this is absolutely intolerable, especially since I know exactly what I'm doing, and how I'm accessing the site. For example, even one, single right-click "View Picture" in Firefox seems to trip the anti-bot mechanisms of the site. That's something I've now proven twice of the three times I've been locked out.
EDIT: I do want to point out that I've only experienced this with the sets, not the diary, pictures. I can only assume there is some dynamic generation going on when it comes to pictures in the sets, for various purposes. I won't speculate on that any further than that technical note, and why there is likely additional load involved. I deal with quite a bit of this for my living myself, and am really scratching my head here.