Final answer:
The comment reflects the blogger's taste in movies and is subjective.
Step-by-step explanation:
When a blogger describes a movie as 'the greatest film in the last decade,' your first thought should be that the comment reflects only the blogger's taste in movies. Everyone has different preferences and opinions when it comes to films, so what one person considers the greatest, another might not. It's important to remember that there is no objective measure of what makes a film the greatest, as it is ultimately a subjective judgment.