DDG has a nice feature to filter results by your region. Unfortunatelly when it's turned on, the bangs also redirect to your regional version of the bang, e.g. !e normally redirects to ebay.com but with "filter by region" turned on it redirects to ebay.[your-region]. My feature request is an option in the advanced settings menu of DDG which lets the user decide whether the bangs get redirected by region.
(alternative: bangs that get redirected should get a forced .com-domain bang)