The answer depends on the "decentralized network", we have reddit clones and we have crypto-currencies as two extremes.
Based on this site I suspect that the question is about payment-focused crypto currencies and there the answer is simply that they have considered this and avoided this in the design.
See, the payment networks focus on having only validated transactions that move some sort of funds. They don't allow just random content to be stored on the network, only transactions. Some exceptions are Bitcoin based systems that a comment field can be added, and this naturally is a great thing to focus on and put data in that might fit your definition.
So while nothing but actual transactions can be stored, some type of free-form data is available in the shape of a comment field (Bitcoin and Bitcoin Cash: an OP_RETURN field).
The solution to avoid any questionable content is to severaly limit the size of this field. As any image is going to be at minimum a couple of kilobytes or half a megabyte in size, the comment field is limited to less than a quarter kilobyte. A magnitude or two too small for most obvious questionable content.
This is the way to avoid this issue, and after more than 10 years of operation this has proven to be successful.
Una red descentralizada, en teoría, puede ofrecer ciertas ventajas en términos de resistencia a la censura y la capacidad de proporcionar una plataforma abierta para la colaboración y el intercambio de información. Sin embargo, no existe una garantía absoluta de que una red descentralizada esté completamente libre de contenido cuestionable o contaminado.
En una red descentralizada, la responsabilidad y el control sobre el contenido recae en los usuarios individuales y los nodos de la red, en lugar de una entidad centralizada. Esto significa que no hay una autoridad central que pueda filtrar o censurar el contenido de manera efectiva. Si bien esto puede permitir la libre expresión y el intercambio de ideas, también significa que los usuarios pueden publicar contenido cuestionable o incluso perjudicial sin restricciones.
Además, la ausencia de una autoridad central puede dificultar la moderación y la eliminación de contenido problemático. Los sistemas de moderación y filtrado en una red descentralizada dependen en gran medida de la participación y el consenso de los usuarios. Esto puede llevar a desafíos para establecer estándares comunes, resolver disputas y garantizar la integridad del contenido en general.
Aunque existen enfoques técnicos para mitigar el contenido cuestionable en una red descentralizada, como sistemas de reputación, sistemas de votación comunitaria y algoritmos de filtrado colaborativo, ninguno de ellos es infalible y todos enfrentan desafíos y limitaciones.
En resumen, aunque una red descentralizada puede tener ciertas ventajas en términos de resistencia a la censura y la apertura, no hay una solución perfecta para evitar por completo el contenido cuestionable. La responsabilidad recae en última instancia en los usuarios individuales y en la comunidad en general para ejercer un uso responsable de la red y participar activamente en la moderación y el establecimiento de estándares.
Corrupt people always seek to pollute everything that exists and get things illegally and they always develop their evil methods. There is no doubt that pollution will be done at some time, but it will be countered at the same time
The answer depends on the "decentralized network", we have reddit clones and we have crypto-currencies as two extremes. Based on this site I suspect that the question is about payment-focused crypto currencies and there the answer is simply that they have considered this and avoided this in the design. See, the payment networks focus on having only validated transactions that move some sort of funds. They don't allow just random content to be stored on the network, only transactions. Some exceptions are Bitcoin based systems that a comment field can be added, and this naturally is a great thing to focus on and put data in that might fit your definition. So while nothing but actual transactions can be stored, some type of free-form data is available in the shape of a comment field (Bitcoin and Bitcoin Cash: an OP_RETURN field). The solution to avoid any questionable content is to severaly limit the size of this field. As any image is going to be at minimum a couple of kilobytes or half a megabyte in size, the comment field is limited to less than a quarter kilobyte. A magnitude or two too small for most obvious questionable content. This is the way to avoid this issue, and after more than 10 years of operation this has proven to be successful.