Thank you Stef.
Tomorrow morning I will re-check (with fresh mind & eyes)
1) I have tripe re-checked … all what should matter (3-4 items)
2) I have not edited / changed the template …
3) I have uninstalled all plugins, cleared the cache (Chrome browser)
4) (re)installer few more sophisticated plugin for Comments and searched in (theirs) forums – why not visible .. a.s.o
Yes, there should be something on the very root (maybe I did something) ..
I was hopping – to be something obvious with the details I have presented