It allows someone to open your map, edit it, and save it, but if they try to play it it wont work. Read the topic, it further explains. What are your views on that? People can still learn, just not edit your map.
Whats the state of www.wc3sear.ch concerning map protecting?
I (Darky27), the owner of this site am highly against map protecting. I think map protecting screws the mapping community. Protected maps which are submitted to this site are accepted, but will receive a flag that they are damaged. As you might noticed, my scripts can extract any informations out of your map, no matter how good or bad your protection application is. Fact remains you cannot protect am map from me.
I like protections which allow everyone to open the map freely and without crashing in War3 and World Editor. Right now i know only 2 protections which garantees that. The menioned above is 1 of them. The Doodad thingy crashes either war3 or WE and is therefore not on my "like" list :-)