Was it "Disruptive Advertising" that contacted you? At first i just pointed interested agencies towards others before taking it up myself.

No, we didn't have an offer that I personally got. Another Hive member got a connection for $15k which involved, when drilled down, few actual confirmed deliverables and a 'retainer'. Those types are meant for ICO scams where the team got so much money that 100k is nothing.

For 1 person to do this job properly youd need to pay them an amount that will not be approved by the community (or it will get backlash).

Now the other question is why are we even entertaining the selection of a specific company without giving other companies, including those run by our own members, a chance to bid and offer their services? Even governments have to do RFPs. Are we really more corrupt than a government?

That is not correct.
I didn't realize you were in Croatia. In US/Canada you would be destroyed. If I tried, even with a self-employed designation, to do this I'd have a meeting with the CRA.