There are not many free slots in the campaigns. Probably many people think that $20 is still 20x more than $0
If you have a junior account, you're active on the forum anyway and there are no alternatives (i.e. other campaigns accepting juniors) then any price is a good price as it doesn't cost you anything.
I see similar thing on the other forum, altcoinstalk, where there are dozens of applicants for a single available slot, even knowing they only pay $1/post (Senior-Legendary) and $0.50 for full member.
I guess this is still attractive for people from poorer countries and/or for young people who just to make some income.
Plus, to be realistic, the power of the Bitcointalk forum is declining, and so is the payment rate for campaigns. Although $20 for Jr. member ranks as quite the correct payment.
For example, just a few months ago, $50 a week on altcoinstalks was considered miserable.
The decline in payment rates is almost entirely due to the ban on mixers, as they offered the best payments.
When I got back to the forum in 2022/2023 after few years of inactivity, I was surprised to see payments being so high despite the drop in the forum's activity. If I remember correctly, $1/post was considered a very decent pay say around 2014 (although the dollar was worth much worth).
On the other hand, the campaign’s funding does not seem low, as the number of people who will be accepted is 50, and approximately a small number of signature campaigns have that. If we take 50*20, the minimum weekly payment is 1000, which is exactly the same as a $100 signature campaign for 10 accounts.
I think they should change the campaign manager and everything will be fine, but what caught my attention most was the large number of reviews for the service, even though it was the first time I heard about them.
Yeah, in terms of a number of users, it will be quite large campaign, but, in terms of budget, it'll be around average. So it's a bit odd that they're willing to put in all that money but are not bothered with getting properly designed signatures or hiring a campaign manager.