Most pay site owners think of "adult games" as filler content which is incorrect, they can be a valuable interactive part of a site.
For a paysite owner, adult games will not increase signups but they'll increase members retention (people return to play the games, to improve their records and see their name in the top10), which makes them an important asset to any paysite. With the new visa rules I'd say retention is the most important thing a paysite owner should focus on.
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