I was wondering whether that could cause issues for the limited servers available, like when the mass migration from reddit happened. Would it be bad to add more accounts that would be mostly dormant? And if one does create a throwaway would it be better to delete the account afterwards.
If it’s to protect your identity from some embarrassing content you’re afraid of tying with your main account then it’s fine.
If it’s to skirt the rules of a community or instance then you’re just pushing the instance admins into making it harder for everyone to make throwaway accounts in the future.