NoDice said:
this doesent happen, thats why theirs the extend map option,, however vote map does allow to go from D2, cbbl, D2.. which would still be 10x better than playing a map like cs_747, cs_estate, and so on. i beleave laim wrote a nice program so the past 3 maps or so dont show up in the vote options
I haven’t written it but I could easily. 
Would pretty simple in concept:
Vote map: It randomly pulls in choices from the vote list and after x amount of time allows played maps to be re-voted upon.