Is the red perhaps a dark purple indicating you clicked on the link?
Click on the listing title and the same thing will happen.
It just means you viewed that page and it's a normal internet thing, not an indicator that an edit is required.
This screenshot shows 2 listings I revised in purple, and 2 I didn't in black.
If it's really bothering you @jaj.us.cehkd9fwa , clear your browser's cookies/cache and all links will go back to the original black.
