Stop DDOSing yourself

Last time I reposted a link to my blog on the fediverse my site went down. It's a small server but it should be able to withstand a bunch of get requests. I realised I probably don't need to verify a user's signature on every request, since it's only relevant when posting to the inbox route.

So now I've reduced request time by 100-fold, let's see if there's an improvement.