Hi @Cansu
I have seen another customer utilise a custom pop up modal.
For users who are not logged in, a prompt modal is shown after a predefined amount of time on the community, if a user dismisses the modal then it will not be displayed for another 30 days to avoid spamming.
This put the login / registration right in front of any visitor to your community.
As for benchmarking, this is really tough since every sector has different needs and business models of their own. Thus the user have different habits and needs.
What I would suggest is you consider Monthly Active Customers. How much of your customer base is engaged and part of your community. That would be a good yard stick to how you are reaching a wide audience of people invested in your product and development.
As you have seen, measuring the percentage of visitors who are registered and logged in would be good.
Hi @Alistair FIeld thanks for the reply! I meant subscription to forums not to the community itself so more like agreeing to receive emails whenever there is a new post.