Not bad. Also could for plausible deniability of use of encryption. Or I guess to use our governments' newspeak "parallel construction".
"So Jon, you use tor a lot. What's going on?" --"Hmm, well I like women wearing high heels stepping on tomatoes alot.." ---"Ok, well that's 10 lashes for you" (Instead of decapitation for conspiring to overthrow the government).
Hide in porn, watching porn is not suspicious.