[Ted S]

Thanks for the kind words (and reposting this in the forum, we're big believers in letting the community see & respond to all questions / concerns / ideas).

Essentially what you're looking to do isn't rocket science at its basic level but it quickly grows into something that's very specific and really not an addon so much as a customization (i.e. you're not just trying to capture a "want," you're talking checklists, sharing, presumably some privacy options, etc).

Matching and interest recommendations even more so... you can build a simple formula or set of rules (i.e. A+B+C = you want D) or start getting into automated logic. Still not rockets but maybe hobby ones...

I like to think of addons (all of them) as a base step. A feature layer to get you core functionality and build off of. What developers tackle is just a base and won't ever match a site's full needs exactly but rather gives you a working step forward that may need a few design hacks or, in cases like this, some decent code additions.

I know this is not what you want to hear but even if "wants" were in our roadmap (they're not, in fact, we have not been asked for them before), it would still be miles away from what it sounds like you specifically need.