I have good website about pest control, for my business. Pretty good traffic, about 1000 visitors per day.
Recently I saw a funny viral YouTube video, featuring a funny song. I searched for the lyrics online, and finding no page featuring them, I listened to the song carefully and created my own lyrics page for the song, and I posted it on my pest control website with appropriate anchor text, title, etc. I just did it for laughs, because I like the song, and wanted a lyrics page to exist on the internet.
I immediately got #1 Google ranking, due to zero competition, and got a ton of visitors, doubling my daily traffic to my pest control website.
The thing is, while I make money from my pest control website, and it's important to my business, this song lyrics page does nothing for me. I'll never make a cent off of it, nor do I want to.
My only question is: does this lyrics page, now the most popular page on my site by far, affect how Google treats the rest of my website? Does it decide that I'm no longer a pest control site but a music site, or viral meme site? Will this harm the traffic for the rest of my pest control pages?
Or is the opposite true - is any traffic good traffic? Is it possible that this popular page, which has increased the total viewership of my site, will improve the rankings for my other pest control pages?