In the spirit of the season, I purchased this plug-in for our forum. Realizing that not everyone will want to view snowflakes, each member can control what he/she can view by settings in their profile. Lastly, I will only enable the plug-in during the weekends through Christmas.
Go to...Edit Profile -> Settings -> Display Settings. Here you can disable the snow flakes or adjust the size and number.
If you have any questions don't hesitate to ask.