Hi, Jim-san
some people write "http://2ch%2esc"; like this

http://ai.2ch.net/test/read.cgi/newsplus/1396022520/415
http://ai.2ch.net/test/read.cgi/newsplus/1396517481/725

If we push this link, we can jump to "Hiroyuki 2ch".
I think you should prohabit "http://2ch%2esc"; also.