The way I see it, there are four possibilities:

1: delivery value is linear in relation to cred. You know, value=m*cred+b. Stocking up on visits and then using them all at once is going to be no more effective than using your 4 visits per day. over the same period

2: Cred and delivery value are related by some other polynomial. For example, y=ax^2+bx+c. each new cred point will carry more and more weight, and stocking up on visits will see some level of payoff

3: some combination of forums visited and cred (either total or average). Again, stocking up on visits would see a benefit

4: something else entirely. I am by no means clairvoyant, omniscient, or otherwise able to read minds.

As a note, if mods/admins/creators of forumwarz believe such info could be exploited or have reasons they don’t want to release it, just say so.