Basically back in late 2018 or early 2019, The big Brony YouTubers blocked Chris, as a result, Chris made a Twitter rant, then made two videos which are deleted but uploaded on other channels freaking out at them to unblock.
So now, he regressed and now he is saying "Please PLEASE unblock me!"
Here's my 2 cents on this...Chris, why would you worry about this blocking thing...again? You already were blocked by them in the past, you freaking out won't help it. And I like how in each thing he posts where he apologizes, he has to to "relate" to them in some way.
All I gotta say Chris, don't worry about these Brony people, besides it'll be so many years until gen 5 of MLP comes so you should let go.