Could not agree more - it is 100% about leaving evidence of your presence and your value, plus it's just fun to connect with people! I set myself a target of commenting at least 15 times a day, but only if I can help out that person in some way with my comment. Otherwise, I am just spamming and not being helpful.
Great piece @papa-pepper :)
Glad to hear about your target and understanding of it! Thanks man!