做一个匿名版（无注册论坛），求表结构优化意见

CREATE TABLE IF NOT EXISTS `sougou` ( `id` int(11) NOT NULL AUTO_INCREMENT, `parent` int(11) NOT NULL, `updatedAt` int(11) NOT NULL, `createdAt` int(11) NOT NULL, `replyCount` int(11) NOT NULL, `uid` char(8) NOT NULL, `name` varchar(255) NOT NULL, `email` varchar(255) NOT NULL, `title` varchar(255) NOT NULL, `image` varchar(255) NOT NULL, `content` varchar(2048) NOT NULL, `hide` tinyint(1) NOT NULL, `sage` tinyint(1) NOT NULL, `lock` tinyint(1) NOT NULL, `delete` tinyint(1) NOT NULL, `pwd` varchar(8) NOT NULL, `like` int(11) NOT NULL, `liker` varchar(512) NOT NULL, `dislike` int(11) NOT NULL, `disliker` varchar(512) NOT NULL, `recentReply00` int(11) NOT NULL, `recentReply01` int(11) NOT NULL, `recentReply02` int(11) NOT NULL, `recentReply03` int(11) NOT NULL, `recentReply04` int(11) NOT NULL, `recentReply05` int(11) NOT NULL, `recentReply06` int(11) NOT NULL, `recentReply07` int(11) NOT NULL, `recentReply08` int(11) NOT NULL, `recentReply09` int(11) NOT NULL, `recentReply10` int(11) NOT NULL, `recentReply11` int(11) NOT NULL, `recentReply12` int(11) NOT NULL, `recentReply13` int(11) NOT NULL, `recentReply14` int(11) NOT NULL, `recentReply15` int(11) NOT NULL, `recentReply16` int(11) NOT NULL, `recentReply17` int(11) NOT NULL, `recentReply18` int(11) NOT NULL, `recentReply19` int(11) NOT NULL, PRIMARY KEY (`id`), KEY `updatedAt` (`updatedAt`), KEY `createdAt` (`createdAt`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;