Just as at mudcat you can search on anyone's user name, many other sites have a "see all posts by" link on the site. For maximal exposure you might insert links to the search result for your username in "indexible" threads ...

Having Google ads at mudcat may slightly increase the odds that mudcat gets indexed, while other sites where you post may get indexed only when "something interesting" gets posted. (not an intentional assessment of mudcat content...)

Sites with a .org disignation seem less likely to be indexed, and .edu and a couple of others generally are never indexed by most of the major search engines. Stuff on .edu sites may show up if they're linked from another kind of site, but the main search machines don't "crawl" these sites as a rule. There are special purpose search indexes for some of these sites, but for others you have to "penetrate" the site and use their local search engine.

There are a number of "tricks" that sites can use, either to increase the odds that the site will be crawled and indexed, and/or to reduce the odds that search results will appear associated with "objectionable" terms. Some people spend a lot of time and money trying to affect how and where their stuff turns up.

John