Why you can't scratch

bind "MWHEELUP" "+jump";
bind "MWHEELDOWN" "+jump";
bind shift "+speed; r_cleardecals";
bindtoggle t cl_righthand;
cl_teamid_overhead_always 1;
+cl_show_team_equipment;
rate "786432";
cl_updaterate "128";
cl_cmdrate "128" ;
cl_interp "0";
cl_interp_ratio "1";
cl_predict "1";
cl_predictweapons "1";
cl_lagcompensation "1";
net_graph 1;