"SMS Marketing" is sending people spammy text messages. Do you enjoy receiving spam messages on your phone? Neither do I, and I don't know of anyone who does.
"SEO Marketing" is not a real thing, because "SEO" stands for "Search Engine Optimization," which means optimizing websites for search engines, which can only be done by the website's developer(s) and those who add the content. If someone claims to be an "SEO Marketer," then that means they spam forums, blogs, and other social media for a living.
Hiring an "SMS Marketer" or "SEO Marketer" will only hurt your company's reputation.
That announcement by Thor is nearly 11 years old, and it is still in effect. I have lost count of the number of boards I have had to suspend this year alone for "adult" (to put it mildly) photos and videos, and all of those boards were created by long-standing Runboard members who should know better.
Yesterday, someone advertised a message board at The Runboard Directory, using the words, "erotic" and "sexual". When I looked at the board, I found naked CGI characters. I won't even describe here what those characters were doing, because the description itself would violate Runboard's Terms of Service. This should go without saying, but I suspended the board.
The person who created that board has been on Runboard since 2006, according to the account registration date, so I am baffled as to why this person would believe it was ok.
A bit of advice: If you want to create a message board for sharing "erotic" and/or "sexual" video clips and/or photos, don't create it on Runboard, because I will suspend it.