Trends I do not like:
Everyone doing a siyum during the 9 days and using it as an opportunity for partying
Organizations having meat fundraisers during the 9 days
Resteraunts having siyums on the hour so they can sell meat
Tisha Bav being a day for "inspiration" rather than a day or mourning (related: Yom Kippur davening becoming a kumzitz as if we think that the decree can be averted via repentance, charity and humming lalala)