CoonDog Would allowing mass download on public gallery cause problems with robots mass downloading? I have some galleries 350mb. Is the link hid from robots in JavaScript or something? Already have robots.txt in root.
If it's safe for public "human" download, that's up to you to decide. As for robots, I don't see how or why robots would mass-download. First of all, the mass-download button isn't a link (which bots normally require to "follow" when it scans website), but a Javascript function that triggers a few advanced processes in browser before it can create the download list. I doubt bots are capable of this, or have any interest in wasting unknown amounts of bandwidth for an unknown process.
Of course, someone could make a bot for that exact purpose but I don't see how any bots would blindly trigger mass-download.