The rules of the forum are put in place by the administrators (Sanjay and Susie), not the moderators. So, we're just enforcing the rules that they set. And quite honestly, the 30 day rule isn't completely hardfast. I'll let it be pushed to 45 days, sometimes 2 months if I feel that it's worthwhile. Same with site linking... if a new person comes in and says "hey, check out my blog", I'll nix it right away. If a regular comes in a posts a link and says "Hey, check out this information", I'll let it slide. The rules are there, but they're discretionary.
There's not enough activity here to warrant another mod right now... yes, right now I'm by myself, but Fallon will be back as soon as she feels up to it. When we're both here, we're pretty on top of things. And she and I are usually on the same page, and can be pretty consistent.
The regulars here know how this forum is run and what is allowed and not allowed and can help police the situation. And that's very helpful. I know that when I'm not around, I can count on people like Xero, 16th, IADad, Bssage, Cthru, F06, on and on to help out even though they can't actually go in and delete & edit threads.
As far as threads being locked, if they're locked they don't show up in search results for search engine spiders. Thus, number of people we're helping goes down. Believe me, ALOT of people view this site, most of them just never sign up. If you sit and watch the people come online, it's amazing how many guests we get.