There are at least 30000 Delphi 2007-2010 users

At least that’s a possible interpretation of the download statistics of my dzEditorLineEndsFix tool

As of today, it has been downloaded 33994 times since I wrote the first version in 2014.

Of course there will be duplicates and also those who have updated to later Delphi versions or stopped using Delphi all together after downloading the tool.

On the other hand there will be those who got the source code and compiled it themselves as suggested by Embarcadero, or those who use an alternative solution. So maybe 30000 isn’t such a bad guesstimate.