I left this question vaguely broad, or maybe broadly vague. Neither sounds right so if somebody has a better suggestion, please let me know.
Which Spam folder am I talking about? All of them. E-mail, WordPress, and any other place you have a Spam folder. I had been in the process of starting to write this post when I saw another blogger raise the issue: https://wordpress.com/read/blogs/41586750/posts/974, specifically
You need to check your dashboard, click WP admin at My Site then check the comments section to see if the comments are going to spam, you will find there many spam comments with links and ads, but many are not! So make some effort and do some real blogging.
I haven’t been hit with her problem about getting people Liking/Unliking/Re-Liking or the Follow/UnFollow/Re-Follow yet. I have had a fair number where the link to their blog is broken or was deleted.
I know plenty of people who either mass delete everything in their Spam folders without checking or simply let the Spam folder sort itself out if it has a timer where the Spam folder auto-purges things older than 30 days or some other time frame.
I used to be one of those who ignored my e-mail Spam folder until one day 15 years ago a friend asked me why I hadn’t responded to their e-mail. Turns out my e-mail provider sent it to Spam even though I had e-mails from their domain filtered to go to a certain folder. After that incident, I check my e-mail Spam folder multiple times a day. Thankfully, it’s down from the 500+/day it used to be.
On WordPress, I check the Comments Spam folder daily or every few days. It’s rare I get many Spam these days. I recently had two (2) non-Spam wind up in it and they were buried deep as numerous spammers decided to hit me with a couple dozen Spam comments in one day. Usually, I get a handful of Spam on WordPress.