Winter Play...How Does It Affect the Grass?

There are many things this winter, that I have never witnessed.  The endless mild weather has allowed for a lot of extra play.  Everyone has an opinion on short and long term effects.  Unless the greens are frozen, then thaw while you are playing, I do not see any long term problem.  There still is minor freezing and thawing and that makes greens very bumpy.  Some poa annua has germinated.  The poa is growing slightly, but the creeping bentgrass is dormant.  The second picture shows the many different winter colors of creeping bentgrass.  There are golds, purples and unusual green colors.  These are the grass tips sealing off and protecting themselves. 
The only added problem winter play creates is wear issues.  My staff has changed cup positions many more times than I have ever seen in the winter.  The grass is dormant and not actively growing, so it cannot recover from wear injury.  The first picture of the large putting green, you can see wear patterns developing.  After aerification and some warmer weather, these areas will recover slower than the rest of the green.  There also has been some bermudagrass wear in spots, but it ended the season strongly and will recover rapidly.