First of all, who has been claiming that I have an ED issue?

Example: This Viagra, Cialis, Levitra ad which I copied here:
(Why is it now jumbled when pasted below?):

A yz ffor ow da tz ble V jh iagr dg a $ 1 C ik iali bi s $ 2 L kf evitr br a

Why the nonsensical text below in the ad?:
no quieter castle in all the Seven Kingdoms. The servants here were few and old and kept their

Thank you,

Robert

Addendum" In the first part, are there invisible filler letters so the spam detector does not recognize flagged words?

It's an attempt to confuse spam filters and detectors.

As you may notice spam seems to come in waves, as fast as the filters are updated so the spammers change tactics and methods.
So we are always fighting a reactive battle against them.

The middle of last year spam volumes peaked at 90% of sent e-mail, bearing in mind how many billions of mails are sent daily that's a serious deluge.

Why do they bother, with a conversion rate of about 0.1% that's some potential big numbers.

I get spam for ED medication, for hoverround type chairs, and I win 10 million every day , sometimes several times a day.

Advertisers come out with ways to get past spam blockers