There is no problem with people asking BMW mini questions, or Renault (mine) or VW (still mine), or Toyota (yup still me) in the appropriate sections because we are a friendly knowledgeable bunch on here and as mini owners we like to help each other.
However, if its a Bini question from a newbie with 1 post,rather than a regular member then they have probably found themselves on a site they hadn't intended to visit and its fine to point them politely in a direction thats more appropriate if the answer isn't immediately forthcoming. You should also remember that if you sign in from a mobile then it is less obvious that this is a classic mini site and not all of our new sign ups have English as a first language
So polite replies are fine or feel free to help if you can, thats why we all are here,