if asked whether it works or not, just ask some casinos that have been running signature campaigns on this forum for a long time
I bet they work. When reading gambling topics here, I read only gambling topic that I saw have (or had) signature campaigns here
Duelbits, Stake, Roobet, BetFury and maybe Sportsbet (but they are mostly football oriented, and their page is not allowed to visit with my IP, so I check them rarely) - all of them are one of the most viewed topic (topics that are still active). If I plan to make a deposit and have fun, I would consider these casinos to be first in my list. Imho, signature campaigns really pays off.
If signature campaign doesn't work, there's no reason for any casino to run signature campaign until right now, increase the participants and even decrease the minimum posting requirements
To be honest I don't find any crypto casino that become big without promoting in this forum and has run signature campaign, the old casino like primedice and nitrobetting had run a signature campaign before. But primedice trying to built their sister company reputation e.g. stake and launch huge campaign, while nitrobetting somewhat is controversial.
You are absolutely correct, From my personal observation, All casinos running a signature campaign on this forum are always famous, most especially when there campaign is active, hundreds of thousands of people visit this forum everyday both users and non users, the signature ads are always in their face and many of this persons can become a customer to the casino owning the signature they clicked..
But I think the mistake most casinos advertising on this forum through signature campaigns make is that, they tend to think or believe that immediately they launch their signature campaign, they should start getting a lot of new customers who will instantly start playing on their casino.. No, signature campaign is a long term kind of advertisement, this means that it only pays off in the long term not in the short term, Stake.com signature campaign has been running for years now, and they are still hiring, if this campaign wasn't paying off for them, I believe they would have stopped hiring more participants, or better still, they would have ended the campaign.