There's been an uptick in recruitment spam coming through to the group recently. Everybody has their own opinion, but I'm of the mind that posts about in-town, iOS-centric gigs are OK, everything else is a judgement call.
If a message gets through that's inappropriate, can I suggest:
1) Email the person directly, and say why the topic is inappropriate (note that the reply-to address for messages from the group is probably not what you expect)
For me, a reply-all to spam is still spam. If nothing else, take the spam as a confirmation that you're interested in an in-demand technology ;)
I'd be interested in hearing more topics about what people are up to - who's shipped something recently? Who's attended/will attend conferences? I see the Meetup groups are blowing up too - how are those going?