Forums Scripts & Popups warn 2x kick on the 3rd.

on $@*:text:/(come to|join|check out)#*/i:#:{
  inc %warn. [ $+ [ $nick ] ] 
  if %warn. [ $+ [ $nick ] ] == 1 { msg # first warning $nick $+ , do not spam }
  elseif %warn. [ $+ [ $nick ] ] == 2 { msg # last warning $nick $+ , do not spam in this channel! }
  elseif %warn. [ $+ [ $nick ] ] == 3 { 
    ban -ku60 # $nick i warned you, do not spam in this channel! 
    unset %warn. [ $+ [ $nick ] ]
  } 
}