After reading your post, I come away being unsure about your goal. Is the goal here to simply advise others as to what they may encounter using the See Also functionality? Or is your goal to advise Adobe about what you would like to see changed?
If your goal is to advise Adobe about what you would like to see changed, you need to visit the Wish Form at www.adobe.com/go/wish and file an official request. Otherwise, it just gives you a nice warm glow that you had your say here. But it won't have much of any effect on the product.
As far as any workarounds, I might suggest the following. You seem to be regularly creating a new projects and importing content. And if that's the case, I might suggest you create a template project that would already have these things in place so that as you add content, the expected keywords and links and whatnot are already in place. My thought is that this action would ease much of the frustration you are facing.
The length of the description is to just to describe the problem fully. I see enough threads here about people trying to upgrade their RoboHelp version, and/or import old topics, that I can't be the first person to have noticed these problems. So as I said, I was just asking if anyone had found any workarounds if they had discovered the same problems.
These look like pretty fundamental problems too, as it's not just a case of search/replace or fixing up a stylesheet after importing your topics. It's a (seemingly) unfixable set of bugs in RoboHelp's import process that breaks/ignores the operation of the See Also links, and in the case of issue 1) could lead to real confusion.
I don't beleive making a template project would help. RoboHelp would still cause issues 2) and 3) when importing .htm files.
I already sent a bug report using Adobe's feature/bug form a couple of days ago.
I think Rick's point was the template project could already contain some of the files thereby avoiding the import.
In the root of your project, there is a file rhakeyword.apj. Open that in a text editor and you will see the keywords. Maybe you could delete the one that Rh will not let you create. You may also need to delete the CPD file.
Do this in a copy of your project.
See www.grainge.org for RoboHelp and Authoring tips
Thanks for your tips. I searched your excellent site several times, feeling sure these problems must have surfaced before. I believe it was there that I found other references to deleting the .CPD file, which did indeed make the project forget old SeeAlso keywords. I ended up having to manually populate rhakeyword.apj with my required keywords, before importing my topics.
Since RoboHelp already adds a large <!--Metadata block to the topic's See Also HTML code, it's surprising that it doesn't correctly reinstate the operation and properties of the SeeAlso control when importing the topic.