Is that screenshot from the metawin website? Is it possible to disable your last seen? I couldn't find the feature when browsing through my profile.
I don't think that feature is there as I have also been trying to hide last seen but I couldn't find it. Anyway your comment made me to remembered my daily login points as I just gone to claim by point on the site.
I hope they implement that soon on their site, though I could be wrong maybe someone can also search if they can find it.