I consider this too specialized keyword to be added. If you just want to run a keyword certain amount of times so that you don't care about possible failures, you can use Repeat Keyword with Run Keyword And Ignore Errors as you already noted. Alternatively, you could use FOR IN RANGE or WHILE with limit in combination with TRY/EXCEPT/ELSE. The latter also makes it easy to keep count on failures if needed. More importantly, these structures make it easy to act differently on failures, something that a dedicated keyword wouldn't allow. Finally, I would like to avoid adding new Run Keyword variants and instead think about programmatic structures that support same functionality but are more flexible.

Although I'm not sold on the idea to add this keyword, I leave this issue open to see how others feel about it.

Looking this again, I believe it's better to create a custom solution using the programmatic structures discussed in my previous comment