I don't know much about RSS, but it seems like occasionally I get spam1posts2 from biostar in my RSS feed and when I click on them, they're always deleted already. Is there any way to delete them from the RSS feed immediately when they're deleted from biostar so they never show up in the RSS feed?
The issue is with the RSS reader caching the results. Right now if a post is deleted after your RSS reader connects it will stay in your RSS cache even after the post is deleted from the feed.
The amount of spam seems to be increasing - it needs to be fixed at submission level. I'll add a both a "honeypot" form field and a simple extra validation field to the post interface. We could also add either a re-captcha (but I don't like solving those ;-), they make me squint) or a spam classifier to proofread the posts.
I don't know which of the above remediation are still in play now but SPAM in RSS is out of control to such a degree that it puts me off to skimming biostar... unless I need to get some CBD gummies or go on a Keto diet...