Its overall IMDB-rating should be no higher than 7

Rating: 7/10 (23 May 2018)

A rating of 7 usually indicates that a movie is good fun to watch, but won't revolutionize your view on the industry. This movie is very much like that. There are things in it that are hilarious, and if you are a frequent movie-goer, you will enjoy the many references and gimmicks. However, what that is said, no real story is ever told. There is no real arc for the characters, even though the movie attempts to force one down on them. It feels very much like a transport into the forthcoming X-force movie, and Deadpool 2 is, in my opinion, not able to stand on its own.
Another problem I have with it is, that it spends much of its runningtime, bashing other superhero-movies for being repetitive and franchise-hungry, but in the end, Deadpool 2 becomes all the things, that it is simultaneously making fun off. Therefore it doesn't become clever or edgy satire. Instead it becomes "lazy writing".
So, if you want to watch something relaxing and hilarious on a Sunday night, then by all means watch this movie. You will laugh, but no more than that.