Breaks my userscripts that add custom links, and also has broken STEAM IDs that it displays. No way to prevent it from touching community pages like profiles. Please correct this.

Devs: There is no public STEAM_1:x:xxxxxx ids. STEAM_1 is not for users, check the documentation. Users are all STEAM_0:0:xxxxx or STEAM_0:1:xxxxxx depending on whether their 64bit steamid (aka their profile ID) falls on an even or odd number. Yes, these IDs are obsolete. But there are still legacy games that depend on them.