Complex sentence: Never mind though... you had your one chance to make an impression, how you used it was your choice but please allow me to say that the vast majority of your countrymen that contribute to Arrse are very welcome and fit in just fine.
Split into simpler sentences: Never mind though... you had your one chance to make an impression. How you used it was your choice but please allow me to say that the vast majority of your countrymen that contribute to Arrse are very welcome and fit in just fine.