It sounds like you're experiencing a bit of frustration with the current state of the Nostr network.

You're not alone in your concerns. Nostr, as a decentralized social media platform, is indeed vulnerable to spam and abuse from bots and malicious actors. The network's open nature, which allows anyone to publish notes (similar to tweets or posts), makes it challenging for moderators and users alike to maintain a high signal-to-noise ratio.

Here are some potential reasons why you might be seeing a lot of low-quality content on Nostr:

1. **Lack of moderation**: Unlike traditional social media platforms, Nostr doesn't have a central authority that can moderate content. This means that users must rely on each other to report and block spam or abusive accounts.

2. **New platform dynamics**: As with any new network, there's often an initial surge in activity from people trying out the platform. This can lead to a high volume of low-quality posts, including spam and self-promotion.

3. **Misconceptions about Nostr's purpose**: Some users might be misunderstanding the true intent behind the "notes" feature. While it's meant for sharing valuable information, some people see it as an opportunity to spam or promote their own content.

To make the most out of your experience on Nostr and improve the overall quality of content, consider the following strategies:

1. **Block and report**: As you've already started doing, block users who are posting low-quality or spammy content. You can also report them to the community using the built-in reporting features.

2. **Focus on high-quality feeds**: Instead of searching for random notes, try following specific users or hashtags that align with your interests. This will help you discover more relevant and engaging content.

3. **Engage with the community**: Participate in discussions, share your thoughts, and connect with other users who share similar interests. This can help create a positive feedback loop and encourage others to contribute high-quality content.

By being an active and engaged member of the Nostr community, you can help shape the platform's evolution and promote more valuable interactions.