Well if I am the crafter and provided you can see the name before you purchase the item, there is no reason you should be allowed to erase it. If you don't like the crafter's name however, feel free not to purchase the item.
It wasn't possible to erase the crafter's name in DAoC, craft was important part of gearing (at least ~2+ piece of gear had to be crafted), and it was really neat to be able to check people's equipment and be like "oh this guy is wearing what -I- made". It was an amazing way for crafters to get known and advertise their services. (Lot of items were very hard to craft, so craft was often done "on demand", so knowing who was a reliable crafter was important.)
The name of the item creator should be honoured![]()