WIndows 7 reaches end of life in January. It will not be supported any more and not receive even security updates, being rendered to al practical effects obsolete. This may be an opportunity to convince Windows 7 users to move to a FLOSS-based system, like Plasma
 List of places to advertise in << **MOST IMPORTANT TASK RIGHT NOW**
- https://www.facebook.com/windows/ < Can't post but can comment -- quite a few worried and disgruntled Windows users on there (disgruntled about the forced upgrade)
- https://www.facebook.com/groups/windowstipstricks/ <<< This one does not look very promising
(also a few german ones:)
 Talking points
 Why "upgrade" from WIndows 7 to Plasma
 Why not upgrade to Windows 10
 Re-create a theme that looks and feels like Windows 7?
 Advice for evangelists
 Social media posts
 Messages to forums, subreddits, facebook groups, etc.
 Guerrilla market
Although past similar events (Windows XP EOL) did not lead to a significant migration to a FLOSS-based systems, it may open the door to some. I guess what I am saying is, given the results from past , more traumatic Windows-related events, keep your expectations low.