Q&A for people who like playing board games, designing board games or modifying the rules of existing board games
select Tags.TagName, count(distinct LastAccessDate) from Users join Posts on Users.ID = Posts.OwnerUserId join PostTags on PostTags.PostId =Posts.Id join Tags on Tags.Id = PostTags.TagId where datalength(AboutMe) > 0 and datalength(Posts.Tags) > 0 and upper(AboutMe) like '%PROFESSIONAL%' group by Tags.TagName