That statement doesn't make sense. If they didn't contatenate, the string would be even longer and less useful as hashtag, or it would be concatenated again, as most hashtags in English are concatenated words...
Note that the hashtag they are using is #lsr, not #Leistungsschutzrecht .
The irony is that they are not taking advantage of concatenation, in a language register where it is widely used (twitter), and in a tongue where it is idiomatic (German).
