There's still an issue when you respond to an eBay message using Send an Offer. It still flags eBay urls as offsite communcations and/or phone numbers. This makes it impossbile to include links to other related items the buyer might be interested in and more importantly eBay promotions (such as the one today 10% off anything).
Why is it so hard for eBay to detect that the url is for eBay? It's outright laziness and shortsightedness on part of the developers for the website.
Member of the Grumpy Old Man crew