I understand that there is only one The Diary Game #betterlife, which is a project of the Steemit Team. They use the hashtag #thediarygame accordingly.

The Promotion diary, food diary, creative diary, art diary, are a separate project, which each community has promoted, but they are not #thediarygame #betterlife.

Anyway, let's mention the community administrator @steemcurator01 to clear up any doubts.