First of all, the contract between the contributor and the website is an anonymous contract, that is, our country’s contract law does not clearly define the name of the contract, but according to Article 124 of our country’s contract law, it only stipulates that this law For contracts that are not expressly provided for in separate provisions or other laws, the provisions of the General Provisions of this Law shall apply, and reference may be made to the most similar provisions of this Law or other laws.
Secondly, I personally think that a contract such as a prize-winning essay is similar to a lucky shooting contract. A civil contract is an expression of the unanimous intention of parties with equal legal status. The contract of pleasure is a kind of civil contract, which belongs to the category of bilateral contract, that is, the contracting parties have the obligation to pay each other. Of course, compared with ordinary bilateral contracts, this kind of mutual payment has its particularity: one party's payment is not equivalent but an uncertain contingency in the future. It may gain huge benefits or nothing, but this does not affect the luck contract. It is in the nature of a bilateral contract. Because when the parties enter into a bilateral contract, they are exchanging promises, and the promised payment is the agreed exchange object. This does not mean that the parties to the contract regard the two promised payments as having exactly the same market price, or that they regard the two promised payments as having exactly the same market price. Do it equally to your advantage. The main inducement to a contract is the fact that each party has a stronger desire for what is promised to him than for what he agrees to give in exchange. That is to say, the marginal utility in economics is greater.
Thirdly, the Chinese law only clarifies the specific content of insurance contracts for insurance contracts, and does not clearly regulate other insurance contracts, so only the general provisions of contract law can be applied. The lottery draw time and promised bonus stated by the website will not exempt it from liability for breach of contract due to its own reasons, because the liability for breach of contract stipulated in my country's contract law is a liability for breach of contract without fault, that is, it does not presuppose the existence of fault. However, the method of assuming liability for breach of contract is not clear in the situation you described. Of course, it is also possible that the website did not agree on liability for breach of contract when it published the call for papers. This is difficult to deal with. According to Article 107 of the Contract Law, the other party can be required to continue to perform, take remedial measures or compensate for losses and other breach of contract liabilities. If a lawsuit is filed, this point is relatively vague. Usually, the other party will be required to continue to fulfill its original commitment. As for financial compensation, it is unlikely (because there are too many uncertain people involved, it is impossible and unrealistic).
The above are personal opinions and are for reference only.