No problem, Igor (at least from my perspective). There are certain members here, and I include you and Markus in that, whose experience and scientific method add massive value to these threads, even where there is often much disagreement (as is always the case at times with science). Sometimes the style of language used can upset some members, but it is significant that in your case and Markus's, English is not your first language and sometimes linguistic-cultural nuances can seem odd to those from other cultures and countries. I, for example, have had many run-ins with Markus and he was in my Ignore list for a long time (he knows this and I believe I am in his), but I do respect his (and your) knowledge and have learned much from reading the various posts of you both. I am a languages/linguistics graduate (many years ago) and understand that even when someone has a good command of the language, the cultural differences can get in the way of clear intent of meaning.