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I ran phpnuke sites for several years. I left during one of the many forking sessions it has. The straw in my proverbial camel's back was when nuke deleted the support forums and shortly after went pay for updates including security fixes even though most of the fixes were provided by the public, not the developer. I don't know if things have changed since (and quite frankly, I don't care since I am a very happy XOOPS user). That decision split the nuke community (again) and made everyone angry at everyone else. In short, it wasn't fun to run a nuke site anymore.
I researched the options and settled on Xoops. It has several active developers, a supportive community, a main website where I can get information and ideas. And most importantly, it's secure and constantly monitored for holes which are patched quickly. Yes XOOPS has it's share of drama, but it's actually productive most of the time and the participants normally mean well even if they get heated -- that's a lot different from the Nuke dev tantrums....
Over the years, I've found the XOOPS php code to be easily mod'able even for a complete novice like myself. The themes are laid out clearly and are moving toward all css-based for layout.
Xoops has an upgrade path and a plan. I've never had any issues updating a site. I can update my sites remotely, adding and removing modules with a few clicks. I can almost taste the ability to easily run multiple sites from a single database.
I've tried several options. Anyone choosing a CMS should do so too. XOOPS works for ME. You need to decide if it works for you.
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