P: Add publish services (WordPress, 500px, Flickr....)

Instagram has removed post from third party applications. There used to be a LR/Instagram plugin for Lightroom Classic CC, but it stopped working when IG changed its policy.

export options very poor

Thank you, that would be awesome 🙂

It may have gone to spam. I've pinged one contact to see if he can help.

Maybe they need more than two weeks to reply, but I feel like they never ever will. Any hints, Victoria? You might know them better 🙂 

Already wrote to them to make WP/LR Sync available to CC, let's see how it goes 😉 

That's the plan! Drop them an email if you're interested at this stage, as it sounds like they're going to work with developers behind the scenes for now.

So, are the new connectors the way is going to be to publish on different services?

Connectors
(Mac and Windows only)
As part of the new Share tab, you can also share albums directly to your portfolio hosted on Adobe Portfolio from within Lightroom CC using the new Connector feature.
We’re building out the Connector service to have a full menu of third-party services (like photo labs, photo book printers, and others). Please get in touch if you’re interested in working with us.

If so, is the API going to be release?

Nice to see some movement in this direction anyway 🙂

Some of us are not professionals.

That's not exactly true. The Share Menu which you are talking about above is built into both iOS and macOS. Lightroom could access the API for the macOS share menu and add that to Lightroom CC for Mac. That is however a somewhat newer addition to macOS, though it's been out for a while now.