How mighty of you, a freeloading user in this specific situation, to assert Github has made "enough" money and therefore should offer you services at their own expense... you know, because you want it and therefore are entitled to it.
> Github managed to offer anonymous search for 16 years before one day Microsoft took it away. Do you think it was due to DDOS attacks, or do you think it was a power-play to attract more sign-ups and logins?
So what's the issue here, really? Make a free account and move on with life. Or clone the repo and search it locally if you need to. Or decide to take some principled stance and refuse to work with projects hosted on Github. It's your choice.