Bartering means to exchange services for some other service. Task bartering means to exchange task with other tasks. Such as if I'm a programmer and I do not like content writing; Taskbarter can help me find people who will be willing to write content for me; and in return, I will have to write code for someone.
Freelancing platforms run on Actual Money while Taskbarter runs entirely on virtual currency. Rest of the part is similar. Real Money is earned by people doing real professional jobs or businesses while TaskPoints are different. They are earned on Taskbarter and can only be used on Taskbarter.
I've seen many Hobbyists who have many side project ideas and they don't work on them because either they don't have time or they don't want to spend money on them. What they can do is they can come to Taskbarter and hire people for free.
Some people are passionate to work on the things they like. For example, I like to work on Websites and if I had to solve few bugs on a site, it would not bother me that much. I can even do it for free. Haven't you seen people on StackOverflow, Quora, Reddit etc.? People helping others and reviewing codes? What incentive do they get? At least on Taskbarter, they'll get task points that they can redeem on hiring someone.
Similarly, people who have hard-time finding new jobs online, they can come to Taskbarter and find plenty of jobs that they can use in their portfolio. They can gain trust and self-confidence for future jobs.
The rates are currently decided by the task owner. A task owner can decide Task-Value on various points such as Time, Skillset, Complexity and so on. This is similar to Fiverr or Upwork. But the problem here is that people are not aware of the task point value. And the solution is to wait until people get used to it. Once they get used to it, the Taskbarter Team can decide on how many points to allocate for various task types.
Currently it is not. But I've had some discussions with Crypto developers and they said "Exchange Value is the future". And we'll wait until we get a reasonable amount of traffic before converting this virtual currency into crypto asset that you can transact and use elsewhere.
For now, it is not recommended to hire people for big projects. What one can do is that he can hire multiple people and post multiple tasks for a single big project. He can then merge the work.