The title says it. I have never been a friend of aggressive moderation, but this forum is taking the permissive attitude too far. There simply exists behavior that justifies an immediate ban.
Spamming referral links is such an offense. Begging for money is, too. Similarly: impersonation, overly rude language, flame.
I know this must be handled with caution, as to not overdo it... but if people can't even follow simple etiquette, you will scare off valuable users. I know of people who are no longer active on the Bitcoin forum because of the horrible post quality; this will not get better if no moderation takes place.
You can make a subforum similar to /b/ on the chans and allow all the crap there. But remember that even 4chan /b/ bans referral links without further question, even if they don't involve money.
Yep, it's that bad, you're being more permissive than the biggest of the infamous /b/ boards.