Plenty of insults indirectly, webcomics certainly have a habit of not being kind when it comes to the 'cripple jokes' or handling of disabled characters, or PoC.
But not directly?
As for blocking my country usually it's a lot of large media that blocks my country like large name websites, youtube and streaming services, and for webcomics ONLY if it's on a service like webtoons or tapas. (probably licencing issues or had to do with laws in my country)
I have not yet run into this on a small indi comics own individual site blocking me. (Though I also don't go very often to official sites)