Very seasonal, but a bit different than you might suspect. Highest views and subscriber numbers come in August-January, with peak in October/November/December.This thread is a little over 6 months old so I went over to the youtube channel and checked the stats. Up to 116k subscribers and just under 25 million views.
That's not bad growth %. Annualized that would be over 30% growth in subscribers and 40% growth in views. Some of that is related to new content on the views but still pretty impressive.
If it were a business that would be considered a growth stock.
I wonder if the subscriber growth on a channel like that is seasonal? Higher views when folks are bored in the summer and then fewer views in the fall when we are all out hunting? My guess would be that it probably doesn't matter too much one way or the other.