Most users won’t hit this limit and shouldn’t worry about it until they do. However a handful of our users processing extremely massive surfaces have reported an error message like “System.OutOfMemoryException” and/or “Array dimensions exceeded supported range”.
Legends are a standard inclusion on any civil/survey drawing. A table to describe the graphic symbols and even linetypes are needed. The question is when these table are generated and how. Some users wait until the project is nearly complete then manually draw the tables. Revisions may introduce new symbols that can’t be forgotten. There has to be a better way.