A couple of weeks ago -it was found that a lot of spam posts were causing difficulty because of their punctuation marks.
Apps - yes it's going back in time to the first few years of computing when everything came as a separate little program. I wonder how many of them are bought/loaded and never used after the first couple of times. Must be about time CCleaner done a mobile app remover! Mind you it does encourage developers to make every smaller, less memory hungry programms and not build bloatware. (I still have my first edition of an office suite that came on a 5" floppy which had to be loaded into drive 1 before use!)