To save reading the paywalled article, the site is at https://stract.com/
I've only done a single search but it gave me a summary at the top, and some discussion forums in a different format. I'm impressed so far!
If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
To save reading the paywalled article, the site is at https://stract.com/
I've only done a single search but it gave me a summary at the top, and some discussion forums in a different format. I'm impressed so far!
It's a free account, like the one you made so you can write your comment. I'd hardly call it paywalled.
I've just noticed there's a Fediverse "optic", so you can restrict it to Fediverse sites.

"Sign up for free access to this post"
No.