Well, you should officially state that the Trust Dice campaign already escrowed its funds dedicated for Trust Dice's Signature campaign.
Coinbox1 has asked me to escrow the funds for the campaign. The escrow address is: 3
D1ceTrHVrnx1oiN2sr25iq2hEvC54GVAy (Balance:

)
-----BEGIN BITCOIN SIGNED MESSAGE-----
The escrow address for TrustDice's signature campaign is 3D1ceTrHVrnx1oiN2sr25iq2hEvC54GVAy
-----BEGIN SIGNATURE-----
1DarkStrRagcDjWtsPGxkav4WG3poLXzDS
HH+ZdI+JcDqh90sAVnXL/c95HbwWq0oUPt+yhz8xmZnqLjAQqoFqTCOFaPcOGsYXdmKf786HNaHAA8tOSX4UFyA=
-----END BITCOIN SIGNED MESSAGE-----
Note that I am only escrowing the funds (and not managing the campaign).
Most of campaigns do the same. They open campaigns that have first wave lasted for 4 weeks or longer, but after the first wave, they will stop to collect data, and analyse cost-benefit from the campaigns' first waves before deciding to expand the campaign longer to finally stop.
Signature campaigns, in general, will help projects (especially young ones) to catch attention of potential investors or gamblers/ gamers to invest or use sites for gambling/ gaming. If you visit the topic, you can see some campaigns that has continuously run for years.
Overview of Bitcointalk Signature-Ad Campaigns [Last update: 07-April-2019]I think it's also not too bad to test and run Signature campaign for a short time to see some results.
I personally agree that Signature campaign needs to be run for a quite long time.
By the way, what is the usage of Signature campaign on bitcointalk for projects?