I have the same problem. I am registered in a "non eBay" country and mostly use ebay.de but I don't speak/read German on this level. Simply moving to eBay.co.uk will not do mainly because of the following 2 reasons:
1. The inter-database indexing and search between sites is a failure. Searching from .com or .co.uk will utterly fail to get your items form a non EN site if you filter. Reason: categories and item names are language different.
The alternative to browse through over 5000 hits of you vague search is not an option; so searching becomes an intricate mechanism of site switching from .co.uk to .de to .fr and filtering.
2. What about the site specifics? Just because they use the same eBay logo and almost the same layout this doesn't mean that the policies apply to all sites. .co.uk has different help pages than .de . Try reading about VAT and you'll end up on a site discussing her majesty's taxes. Not really relevant if you want to sell on eBay.de but would like to read in English.
So, my conclusion is the following: It's not that eBay ignores the problem its more that they can't fix it. There's just to much data and $ involved in order to fix the language. Think how much $ is going to be lost if they migrate the Categories from any language to ENGLISH and something goes bad. eBay sites going down means profit loss. Never forget that eBay is a business after all.
In my honest opinion, they screwed up in the very design of the whole thing and now they can't fix it. Internationalization is always a tricky business. I do hate it that they shut down global.ebay.com and left us in this predicament.
We should all give a penny or a cent to google and hope their translations will become more and more accurate.
Well... this is just my opinion... so don't kill me