Pinelord
Official Terrarian
No.... I'm pretty sure that's the guide's job. He points you into the direction of different biomes, tells you about the different NPCs and how to find them, talks about mana crystals, and other things. The advice from the Bard could easily fall under what the guide could tell you, and I think that the guide should have more lines like this for the same mentioned reasons why the bard should have them instead. The guide's job is to point new players in the right direction and how to get items and where to go next. I just feel like this a guide that you have to pay for.Because it's not just general advice to help you progress through the games stages, it's hints at where to find rare treasures that players might be completely oblivious to if they don't spoiler Terraria for themselves. They serve different purposes.
I'm not saying it's a bad idea though, I actually really like his renaming thing and think it would be good enough for a new NPC by itself.