Spamtrap detection promoted in YouTube advertisements

This week I saw some advertisements from sendx.io on
YouTube promoting mailing list services, some of which
emphasized that they perform "spamtrap detection" (other
ads from the same company also emphasized "Built-in
Email list Cleaning" which is just a fancy way of
writing "list washing").

I'm thinking about adding them, as I have for others who
promoted the same, to my block-and-forget lists since
they obviously want to provide services to spammers.

I'm curious, what are your points of view on companies
that promote such concepts in their advertising?  What
concerns do you have about them and their apparent (as
advertized) practises?

Thanks.

--
Randolf Richardson 張文道, CNA - noc@inter-corporate.com
Inter-Corporate Computer & Network Services, Inc.
Beautiful British Columbia, Canada
https://www.inter-corporate.com/