It is actually problem for Microsoft/Apple. The percentage between $PLATFORM users generally and $PLATFORM users using your product may or may be not correlate

It is actually problem for Microsoft/Apple. The percentage between $PLATFORM users generally and $PLATFORM users using your product may or may be not correlated. It may happen, that then first percentage will rise but the second will not - you are making it difficult for them, so why bother - and you will miss it. You might fix the software later, but that's the easy part. The more difficult part is to fix your reputation and users habits. They already have opinion of you and found alternatives that work for them. The Thank you, I go back to Google Apps suite. response is a perfect example of this.