The birth of Chrissy or Kirk Cameron becoming an on-the-set tyrant after he became a Born Again Christian? And keep in mind that this stuff happened way before Leonardo DiCaprio showed up.

Neither affected GP that much if you ask me, and I haven't seen the Leo episodes yet, so can't comment on those.

Neither affected GP that much if you ask me, and I haven't seen the Leo episodes yet, so can't comment on those.
I agree.

The only thing that was notaceable involving Kirk was letting Julie go. Other than that the show was still good.

Mike becoming a born again christian in real life

Neither, but that 7th season (IMO) really sucked.

Not the birth of Chrissy, but the fact that they then aged her to be a cute little sitcom kid who said "funny" lines.

I finished watching GP at the end of last month, and while Season 7 was worse than the rest of the show, it was still quite good, and better than most shows on TV today. I would buy a complete series box set in a flash!

Not the birth of Chrissy, but the fact that they then aged her to be a cute little sitcom kid who said "funny" lines.

Ashley Johnson, who played 6 year old Chrissy, was an adorable kid, but I think so adorable that she gave everyone and anyone a toothache. The writers perhaps in hindsight, should have never aged her after she was born. But I suppose the popularity of the show (https://web.archive.org/web/20140407131431/http://forums.televisionwithoutpity.com/topic/2851490-growing-pains/page-7#entry7164450) was waning and they went to the old go-to of bringing on a sickeningly saccharine sweet kid (in sort of an Olsen Twins on Full House cutesy-poo/smart aleck thing) to salvage the ratings.