There is no perfect system and that same thing with absolutism. Absolute decentralized is not effective nor absolute centralized system. Therefore a combination of both system should do in order to get an effective and efficient system.

In the case of cryptocurrency, some are relying too much on complete decentralize system or platform.  Of course as expected there are occuring problems that arises and that still now does not resolve.

Some problems I had seen and observe.

1. The lack of authority from the crypto founder to resolve issues from its user. We will not talk about the authority coming from the government because many of us here will not agree of them to interfere in the system because they can just ruin the anonymity by conducting KYC and other preventive measures. So, what I am seeing is the lack of addressing problems from the founder of the crypto. After they implemented the system they will just say that system is good and ready to go and if you as a user will get mistake then that is your problem and your fault. No one had force you to join in cryptocurrency and you must adapt to it. This is not good for those who wishes a better system.

2. Miners service are decentralize.
Who would ever thought that they could get you a 1$ transaction of a fee which could be more than a thousand dollar's fee? There is something wrong and miners should be held liable into this by only limiting the transaction fee to be deducted not more than the transacted amount. They are abusing due to the fact that their service is in demand especially the bullish trend of bitcoin.

3. The abuse may be only happening and will be resolve between both parties. Same thought about in number 1 but this talk about resolution between both parties and not about the lack of authority from the founder. A certain user could mistakenly send high amount in the transaction without checking it and will be requested for a refund. The other party could deny and there us nothing you could do because it was your fault and no one can help you.

4. Complete decentralize platform may gone wrong.
Again, there is no perfect system and if there will be errors that will going to take place expect that you can no approach any technical team to resolve the issue. Reminders that there are no technical team to review in that errors but only the forum provided.

5. Abusers are free to do scamming in their own decentralized way. The ICO projects before are really worth it and  investors are really earning after investing but today they created a lot of ways in crowdfunding but many of it are just like robbing a bank easily stealing crowdfund even in the daylight.

So much to improve about the cryptocurrency and I think that there should be a need to insert centralized system to get the authority not coming from the government but to the cryptocurrency founder itself.

I had been also a victim of a trust system attack. I do not know that the user does not like what I was talking about but he uses the trust system against me by giving a negative feedback on my account. This is another form of abuse but I could not do nothing against it because he is already a legendary user and I was a low rank user.  

I do not like to complicate more things here by providing the information about the certain user for that is not about him on why I write this post. This is all about the possible flaws of trust system that had been implemented here in the forum that some members become abusive when they get into the position of something in which they can step on others by using the trust system. They know how trust system should be use like giving it to suspected scammers, fraudsters and phishers but becase they hate you as a member then they can cast you with a negative trust due to a certain topic in which he does not like.

In my part of doing that reply was just only a pure intention to help for the forum, to OP and to give or share ideas and thoughts about the concern but I did not expect that he will not going to like it.

Well, I just express my thought and never had any problem with that user. I had only stipulated the possible flaws and abuses of this trust system that can do to other users. You know that merits are only for good users and it is not readily given so it may be hard to start over again to earn to avoid seeing the negative trust provided by that user. Though I can live with it but hopefully other DT members should also correct other DT members for possible abuse.

You are good because you are in the position and it has nothing to do with you. But for the low rank users which has been enjoying a lot in the forum getting a negative trust is likely a disgrace in our part.