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If your site doesn't work in the browser / set up of choice of the first editor who looks at it, they'll leave it in the pile for the next one.
I very rarely run Javascript (if you want to run your programs on my computer, give me a detailed business case first, and I'll consider it. I'm likely to respond favorably if you reciprocate and let me run my CGIs on your server)
So, as an ODP editor, one or two sites (those that depend on Javascript) may have been unreviewable by me.
It's also possible the editor will just think the site is broken, and delete it. An editor that knows that the reason for the problem is their system doesn't run JS should leave it for some other editor to look at. It wouldn't surprise me that there are some newbie editors who aren't that computer savvy who would recognize that the problem is their system is incompatible with the site. Always keep in mind Finagle's Law.
An editor adds a rider to the description noting that the site needs specfic technology to operate.
This is quite common -- do a search at DMOZ for "requires" and you'll see many examples.
Someone not too Internet savvy (though with a locked and loaded credit card and hungry to purchase) is surfing DMOZ or Google Directory or any of the gadzillion clones. They have this conversation
(*) Or Flash or Java or Javascript or or or etc.