Earlier quoted context omitted.
That first one was submitted to /r/programming by a user who has a really bad history of incessantly spamming his/her own blog and nothing else. The user has 2 comments in 4 years, and only 2 submissions which are not self promotion (one of which is yours). I couldn't find a trace of the other two, though looking at your account (or what I think is your account) I am seeing a slew of filtered posts, some of which are…
Thanks I've tried to put moreSQL through again - is it on topic for proggit? http://www.reddit.com/r/programming/comments/qklxn/google_mo... I don't like the idea of having to scrape HN to find other people's content so I can hide my own content submissions in the noise.
And on your second note, the idea is not that you go seeking out content to mix in with your own. If you happen to come across a cool article, and it hasn't been submitted to proggit yet, just contribute it. This is probably part of the community vs content aspect you mentioned in a different comment, but sheer size of the site means that you cannot really ignore the community aspect.
I could probably get in trouble for saying this, but the reddit userbase, as a whole, is not smart enough to filter out what is good and bad. If a bunch of bloggers just auto submit every blog article they write, we will have tons of crappy, ad-ridden, off-topic posts being voted to the top. It still happens from time to time. HN might be smart enough to distinguish the good from the bad, but reddit surely is not. So we have to be at least a little restrictive.
I'm not saying your content falls into those categories, but we can't really give special treatment to people we like or are familiar with. There is one guy in the /r/programming approved submitters list, and he is a very noteworthy programmer who, for whatever reason, could not get any of his posts through the spam filter. He is the one exception. For the most part, everyone is lumped into the same bucket.
So when your posts get caught in the spam filter, just send us modmail. Sometimes we'll get them, sometimes we won't. That's just how it is. I saw earlier that you said you sometimes delete them if they've been filtered. This may be a bad idea. I cannot say for sure, because the admins don't really disclose this stuff, but deleting and resubmitting the same link has been known to hurt a user's standing with the spam filter, so just deleting it may do the same thing, I'm not sure. And there's really no reason to delete it. The only think it will clutter up is the spam filter, which is going to be cluttered no matter what.
Anyway, I hope this has been somewhat useful to you. Sorry about the massive walls of text. Let me know if you have any other questions or concerns.