How to use burner Lemmy accounts properly?

cross-posted from: https://discuss.online/post/641590

Although i am quite a lurker in Lemmy, i don't have the time to be an active contributor, nor i wish to give away too much personal information nor i want to add an unnecessary addiction into my life, which is why i don't maintain a permanent account. However i do periodically have questions that I feel like only communities from Lemmy would be able to answer to my satisfaction, which is why i create burner accounts in my private window which i close after i am done with it.

But after creating many such accounts for this purpose, i feel like i am not doing it properly. I feel guilty abandoning accounts that take up space in servers of instances which are constantly fighting against spam and DDOS attacks; it feels like i am participating in the attack too. However i believe i should not delete the posts, for it may come useful for me in the future and for other people browsing the communities.

What methods should i adopt to further make my use of burner accounts in Lemmy more beneficial to me (in terms of anonymity and future account creations) as well as others (instances in terms of spam and members in terms of posts/comments)? Should I maintain a single account or permanently delete these accounts once i'm done with them?

For context, I use a VPN and Tor Browser and a disposable email for instances requiring email for account creation.