I'm an amateur photographer and a longtime Lightroom user.
I have my website set up on SmugMug.
They have a great plugin for Lightroom that allows me to create a smart collection, based on criteria that I specify, and then sync the content with my website. The criteria is based on images that contain a certain tag and have been rated 3 stars or higher. I can configure what size the images are uploaded at to the website and also if they have a watermark.
Sometimes I go back into Lightroom and edit a few images again, all I have to do is select the collection and it will highlight if there are any changes, I click on Publish if there are any.
This would be a win\win for Adobe \ Squarespace.
I'm looking at helping to set up a website for a community group I'm involved with which will have regular photo content updates. I'll be setting it up on Smugmug if there is no Lightroom plugin for SQS.