Don't Back Down

Posted by Chad Everett on July 19, 2004

Comment Spamathon »

Man, don't know if everyone's been seeing the same thing, but I've been receiving way more comment spam than I had at any point in recent memory. Today even saw a few different folks take a stab at it. I don't really think that it's MT-Moderate - the little plugin that could really doesn't do that much, and is completely useless on entries less than 7 days old.

Does that tell us anything? Maybe. Since I've been paying attention, it seems like most of my comment spam would probably be defeated even if I was only excluding entries over three months old. Only two of the last 40 or so comments I've received that contain spam are even from this calendar year! One of those just happened to be an entry that was quite old (almost exactly a year), but had a comment approved recently. Less than two days, in fact. So it was approved, too. In response, I changed the filter on MT-Moderate to only allow automatic approval if the most recently approved comment was less than 1 day old. Nothing else has come through - but to be fair, nothing else has been excluded by that filter, either.

So just why are these comment spammers after old entries? While I've seen a couple of entries that have decent Google ranks, many of the pages getting hit just aren't that popular - or at least, I don't know that they are popular. Perhaps I should do some more searching to find out that answer. In any case, it seems like most newer entries simply aren't of interest, at least not here. For me, that makes something like MT-Moderate work well. I'd be interested to hear if it works (and how well it works) on your sites. It's not that I doubt the prowess of MT-Blacklist. Far from it, in fact. Jay has done a remarkable job. But I'm wondering if we're perhaps going too far in the battle, when a simpler tool might do the job?

MT-Moderate Update: 77 spam comments blocked out of 78 (.987)!

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Comments (4)

Chad, they go after old entries because they have PageRank. Newer entries either haven't been spidered by Google (the very recent) or haven't had enough hits to garner a high page rank. Remember, they are posting on certain entries because those entries have high (relatively, of course) page rank for the subject matter behind the links they are spamming.

I've also noticed in the past that even when I'm slammed with links on an entry, it takes a little while for Google to put it up there in the rankings even well after it has been spidered. I assume that this is because PageRank is calculated at certain intervals, or perhaps PageRank doesn't "mature" (and have it's full value) until some certain period after it was first found. This could be an anti-link farm mechanism. Hell, it's exactly what I would do. Google doesn't WANT to be Blogdex...

And anyhow, as I told you earlier, MTB v2.0 does among a LOT of other things what MT-Moderate does, or most of it anyway. I'm haven't had time to put in the recent-commented whitelist degradation function yet... I think you'll be happy with it. It's really looks like it will end up as the swiss army knife of user submission management.

I've been using Jeremy Zawodny's script to auto-close old comments on Groovymother for the last 6 months, and almost never see commentspam.

Rod.

I've looked at Jeremy's script before, and it would work - but it leaves comments closed. The advantage of doing it internally in dynamic fashion means that comments on old entries can still be accepted, they just need approval. Admittedly, I don't get a lot of comments on old entries - but they do happen by from time to time. In any case, it's always good to know that there are options!

I've installed this plugin once, but I need to reinstall on another server and it's gone (403 error)...

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