These are all non-issues  

When proper radio technique and phrases are not used, effective communication does'nt always happen. I have heard a tower controller tell everyone "stay off the radio unless I call you". These pilots added too many extra words, improper technique, etc. The contoller was annoyed to say the least. This was Anoka Mn tower the most layed back easy going tower I know. It would be laughable if it was'nt so pathetic. This is only one example. I could give you more, so it does matter! Mike drop