I support the whole ideology of forum spoiler discussion. By its very nature games discussion interaction is at a deeper flowing 'practical -reactional' level, its response is "interaction positive" whereas negative attitutudes lead to restrictive practices, reaction and response - put simply, there will be more discussive interaction by having spoiler content - there will be more response with open spoiler forums. Sadly, there would likely be more work/housekeeping for the forum moderators due to incorrect forum post placement and such. In theory and practice, a 'lazy' forum moderator type (no implication intended) is the most likely type to promote tagged spoiler useage.
Useage of the tags becomes more cumbersome when considering "tagged tags" as in quoted tagged repetitive ongoing and progressive comment, it does not promote 'free' response reaction to query and explanatory answers.
To have a spoiler forum in one section (eg: G3) and not in another is a somewhat confusing reference, there is inconsistance here. Gamers wishing to reference past posts would find easier locatable solution content where no tags are used rather than having to sift through repetetive tags - - easier database browsing.
I fully support a Risen spoiler sub-forum...though it is probably too late now the main forum is established. This should have been put forward, discussed and decided well before Risen Release date.