Is it bannable to play off meta strats or champs?

People on this forum like to point out Nubrac deserved his ban, but them im also told that CS/XP Belongs to No one!! Whenever I queue into ranked solo in plat, i play ashe support and take the cs but everyone blames me for losing every game and saying i will get banned. Im getting mixed reactions Edit: I really appreciate how people take the time to downvote but not add to the discussion. Such a great community
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