SAP has 2 different 'replication' products (that I know of) ... SLT and SRS.
While I can find the SLT community, I'm unable to find the SRS community, eg:
Community > Browse the Community > search for 'replication' shows only
"SAP Landscape Transformation replication server"
Where's the "SAP Replication Server" community?
NOTE: At least I was able to find the "SAP Replication Server" tag (thank goodness for small miracles!)
Mark, take a look at this post, it explains that not every tag has a "community page": https://answers.sap.com/articles/30434/the-next-thing-people-seem-to-be-finding-confusing.html
I'm still a bit fuzzy myself on how are we supposed to navigate among many tags but, fortunately, I usually follow more popular space/tag/community/whatever such as ABAP. And I was able to create the bookmarks, like in this blog. I hear that some kind of a tag catalog with links should be available in a few days.
Hope this helps.