I suppose the people (the common people that is), don't see much of him at all, and therefore can't really view him. They know that someone is helping them and are deeply grateful but that's about it.
I think that if he came out, there would be a lot of support for him. However with the system in place, it would be impossible for him to be placed in a position of significant power. On the other hand, if one of the nobility were to champion his cause and actually try to help their people instead of leaving them to their own devices, it's possible that he may have some influence with that Lord/Lady.
As for his name, it is a regional thing. He was born and raised in the Lower Valley (a region in the world I'm creating), those born there traditionally have family/house names related to flora.
Far to the north amidst the endless ice-flows it is rumored that a dwarven Walrus Totem clan exists. These rumors have been unsubstantiated to date, unless the dwarven sage Glurt Goblinguts is to be believed. He claims to once having encountered a troupe of huge dwarves, each standing a beard’s length higher than the tallest known dwarf. These dwarven “giants”, their hairy chins crusted with frozen shards of ice and dirt, hauled gargantuan yellowed horns or tusks upon their wide shoulders, and their helms, likewise, sported massive, down-ward pointing tusk-horns. Glurt Goblinguts later speculated that the impressive size of these dwarves was most likely due to their arctic diets, almost exclusively fat-based.