At one point I had an idea to give every series it's own unique intro... Even the random videos like YTPs. Here is a list of intros I've stopped using and/or series I had intros for

Pikakid98 (The whole channel):
At one point I decided to make a channel intro... twice actually. Before completely scrapping that idea

Game Beast
This being my second longest running series being my solo gameplay series. At one point I used an intro featuring the song "Starstylers - Keep On Moving" and included multiple stolen gifs downloaded from Google Images. However, This was soon scrapped due to copyright concerns and a need to improve.

Game Beasts Collab
This is my series where I play games with friends, family etc. The intro featured an MS paint image of a badly cut controller clip art over a poorly drawn background with the Majora's Mask time transition sound being used 3 times which would cut to pictures of characters representing the people in the video with the title of the game and the people's names and a cut to black.. This was one of my longest used intros which was soon scrapped and now my collab videos just... start due to this edit not suiting my current style

Pikakid98 Lols
Read More Here

Pikakid98 Poops/YTPs
I used to have an intro (and even outro) for my YTP "series" that I called Pikakid98 Poops which featured a badly scrolling background with a greenscreen of Michael Rosen's hands from his Telly video which then cuts to a sentence mix of Michael Rosen saying Pikakid98 (Technically Pi-car-k-iii-d-nine-eight). This was scrapped due to it being entirely pointless and was replaced with a much simpler watermark

This doesn't mean I won't use intros. I'm just saying that I'll only use intros on series that deserve it and not EVERY DAMN SERIES!!