This may seem minor but it causes issues when trying to create audio triggers. The back quote character (on same key as ~) is used in place of the apostrophe ' character in a number of placed. Item names, NPC names, NPC dialogue, etc.
How is this a bug? They used a different character than the one you wanted. They have been doing this for years not likely going to change.
It's a bug because it is the wrong character. So, just because something has 'been that way for years' it shouldn't be fixed ? They just moved an NPC that had been under the world for 16 YEARS! You're saying they should have just left him/her there ?