Sarah,
As a somewhat infrequent and recent participant here, I hesitate to be too critical, but shutting down the HOW forum because it seems unmanageable would be a mistake. It's just not necessary and would squander a significant resource and opportunity.
Part of my work involves web design and development. I've designed, built, managed and sold several very successful forums over the past ten years — most of them built around phpBB and with two of them having a larger traffic base than the HOW forum.
So speaking from a decade of experience, phpBB is one of several good platforms, and controlling spam is just not that difficult. Hidden registration fields, captchas, IP range blocks, minimum post user group settings with restricted permissions, moderator activations of new accounts, etc., will reduce spam down to a barely noticed trickle. Back-end administration of the forum, as in software updates, coding and template modifications and database management, can be a bit tedious if an excessive amount of modifications are made, but even that's easily manageable (with the right skill set).
Essential to all of this, however, is an active group of respected volunteer moderators who have the authority to implement and enforce a forum-wide set of rules plus implement a zero-tolerance approach to spam that is dealt with quietly, efficiently and quickly. Do this, and I guarantee (from lots of experience) that the spam problem will go away.
Volunteer moderators are the lifeblood of a forum. They set both the forum's personality and, over time, steer the forum in the right direction by keeping it on the road, making the correct turns when choices come along, welcoming new members and making crucial decisions.
I'm not really a longtime regular here, but I see no real evidence of volunteer moderators. I understand that they exist, but where are they? Have they been given no real authority to actually run the forum? Is there no lead moderator or admin steering the ship? From my experience volunteer moderators are easy to line up by carefully recruiting them from the ranks of the longer-term forum members, but it's important to pick the right ones. Once in place, a good set of volunteer moderators is self-sustaining and requires little management or supervision.
Honest, none of this is difficult — I've done it successfully several times, but it has to be done the right way. It would be a shame to squander a resource that could greatly benefit HOW and HOW's readers by killing your forum and becoming just another Facebook or LinkedIn entity. There's potential here that exceeds anything that you might do on one (or all) of the major social media platforms (which isn't to say that you shouldn't do those things too).
Spam and abusive posts are easy to control. What's more difficult is giving the forum a personality that keeps people coming back through just the right combinations of information, drama, familiar people and excitement. Seriously though, it's easily doable given HOW's name recognition and reader base. Really, you've got a perfect forumla to make this work if you'll just take the right steps. Giving up and needlessly killing the place because the current people in charge don't know what to do and lack the necessary skills and interest would be a real shame.
Maybe HOW needs to find somebody to teach them
HOW to manage a successful forum.
