I don't really like listening to Russian-speaking casters, many of them are too unprofessional.
While the English-speaking commentators are learning the nicknames of the players and trying to pronounce them correctly, despite the fact that it is difficult for them because of not knowing the language (for example, Boombl4 or balbIna). Russian-speaking commentators cannot find out the correct pronunciation of easy nicknames. For example, many of them cannot pronounce the k0nfig nickname and name correctly, although this is very easy. They have no desire to develop, since they are popular and there is no substitute for them. I once tweeted to one of them that he mispronounces the player's nickname. In response, he laughed at me and continued to pronounce it wrong xD