Hi, there are a few reasons why I removed it.  Firstly, I understand that it is legal to ride on sidewalk/footpaths but they are not designed for bicycle usage, they are designed for slow moving foot traffic (they are narrow with limited sight lines to driveways and corners).  The inclusion of bikes on the allowed access for sidewalks results in poor navigation for cycling specific apps that use OSM data where the apps are directing usings to ride on sidewalks as they take the bike tag to equal a bike path which these sidewalks are not.  Finally, there is inconsistency across Brisbane with most sidewalks not tagged with bikes and only a few have recently tag with bikes. I think it should remain consistent. 