对于留言的设计，我一向主张：给用户最大的方面，复杂的后台处理留给自己。
一直以来都是使用一款叫做Bad Behavior的插件，它和Akismet有着最本质的区别。Akismet只是把垃圾留言拣出来，而Bad Behavior可以把阻止垃圾留言的张贴。但还是有所担心，怕读者也留不了言，那他们的抱怨也无法听到了啊。后来我把Bad Behavior禁用了。
后来看到Nicky推荐用Spam Karma 2.2，跟风似的用了一下子。没发现有任何用处，又给删了。
也就最近几天的事情，spam非常猖獗，于是我把Akismet、Spam Karma和Bad Behavior同时开了，不见效。几分钟之内Akismet里面又多出了十几条等待删除的垃圾留言。
万般无奈之下，只能使用Math Comment Spam Protection了（在AJUN那里看到的）。留言的时候需要做一个小小的数学题，一年级小孩就会的那种。
非常非常抱歉，对于看我博客又留言的人，给你们带来麻烦了。这也是违反自己的设计准则的。但实在不想看到那么多垃圾留言等待删除，哪怕仅仅只是一键删除。垃圾留言也占空间和流量啊，我不能放任自流。
一起抵制！！
> Richie Says:
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15 12 月, 2006 at 下午3:25
偶喜欢做数学题~ :em02:
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> hhalloyy Says:
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15 12 月, 2006 at 下午3:47
我一直用SK2，感觉挺好的啊。
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> 小林 Says:
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15 12 月, 2006 at 下午4:00
奶奶的，兴冲冲的来做数学题，结果第一题3＋7就做错了，等于11
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> Michael Says:
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15 12 月, 2006 at 下午4:24
这几天 spam 多的恐怖，我平均一天 akismet 就能帮我拦下几百个 spam :em13:
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> Jamie Says:
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15 12 月, 2006 at 下午5:56
kevin，还有很多垃圾留言吗？难道机器人也会做算术题了？
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> 亿城雪 Says:
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15 12 月, 2006 at 下午11:34
几分钟之内Akismet里面又多出了十几条等待删除的垃圾留言
有什么关系吗？总是会自动删除的阿。
俺是Akismet BadBehavior，挺好。
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> Spammer Holiday 大进攻？ | 巧克力工厂 (Beta3) Says:
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15 12 月, 2006 at 下午11:45
[…] 最近 Spam 留言的数量呈指数级上涨，只需要一小会儿，到后台一看 Akismet 就能为我拦截下一堆的 Spam 留言来。这是我刚刚清理了一天前积攒下来的 500 多个 Spam 留言后，半小时内新增的数量。 Kevin 也在 Blog 上抱怨被 Spam 的大肆进攻搞不胜其烦，现在我看我也快被弄烦了。我倒不怕流量被占用什么的，反正每个月连 1% 的流量都用不了，我只是怕有正式的留言被淹没在 Spam 里，Akisment 这东西有时候会误判。几百个留言我要去一页页的翻找，把访问者的正式留言给挑出来，相当的费力。 […]
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> hhalloyy Says:
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16 12 月, 2006 at 上午4:28
[Comment ID #5604 Will Be Quoted Here]
区别是Akismet在显示太多条目时会忽略掉很多，所以被误杀的有效留言可能会丢失，而且不能有效阻止Pingback和Trackback。
SK2会分页显示阻止的条目，在我使用后能阻止一切垃圾留言，不过也存在误杀现象（使用linux不开java的用户）
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> kastner Says:
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16 12 月, 2006 at 下午5:25
填写随即验证码和数学题有什么区别呢？我不太懂
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> Robbin Says:
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19 12 月, 2006 at 上午12:44
簡單的數學題沒有問題
有次在朋友的blog上遇到了有乘法的
突然間還一時忘記以前背的九九乘法表
防spam真的很煩，威力太強的plugin不敢使用，太弱的卻又沒有用，我也是跟Kevin一樣後來還是放上了驗證機制以絕後患 :em16:
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> y0ungs Says:
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5 4 月, 2007 at 上午9:42
能防trackback么？
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> y0ungs Says:
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5 4 月, 2007 at 上午9:44
算术题能不能防trackback？
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> 巫山霏云 Says:
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18 4 月, 2007 at 下午7:38
不知道为什么这个插件在我的服务器上面显示错误…
给spam烦死了..呵呵
sk2还是不好用啊,还是验证码之类好用:)
缺陷就是用户体验太差,但现在都是验证码的…
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