Frinz (removed - thank you) was your classic spammer, and in this case a Profile spammer:–

• Spammer (Oxford Dictionary) (Wikipedia)
• Profile Spammer:– Someone that places their spam within their forum Profile & then places at least one post within at least one of that forum’s boards
   
  (the purpose of the forum post is to get a legitimate forum link back to the Profile, something that all search-engines (SE’s) will follow — ALL spammer activity is intended to game the SE SERPs; any uplift from direct spammer links is simply a bonus)

In this case, Frinz placed his spam within the Personal page for his Profile. His stats are:–

• Signed up: 07:18 16 May, 2017
• Edits: 0
• Traces: 0
• Diary: 0
• Comment: 07:19 16 May, 2017: Comment content: “Hi Hello!”

Fairly transparent once you understand the method & motivations.