Thousands of Bitcoin donated to improve the forum

That was donated many years ago. Currently, there's no money coming in.

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would have paid for the forum to run on monster servers for the next 100 years, but instead it was spent on fast cars and villas.

Proof it. The forum's addresses are public.

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Theymos, as far as I know, is currently sitting on over 500 Bitcoin that he claims belongs to BitcoinTalk.

Pick a side: was it spent on toys, or is he HODLing? You can't have both.

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Give me 5 Bitcoin out of the 500, and I'll make BitcoinTalk the best forum ever without using CloudFlare.

Did you read what I quoted? Again:

If I had more manpower, then I would prioritize maintaining our own DDoS protection

However, if this is your way of applying for the job, I don't think you'll pass. Work on your anger management first.