Alphonse Puthren's post has, however, made a lot of people very angry. "Rajamouli doesn't need Rajinikanth for breaking box office," reads one comment. The opposite sentiment - that Rajinikanth doesn't need Rajamouli - has also been expressed. Some users do agree with Mr Puthren that a collaboration by both would be outsize.
S S Rajamouli, who has spent some five years on his two-part magnum opus, has often been asked about plans to make a film with Rajinikanth - he's always maintained that he doesn't have a script ready.
Rajinikanth, meantime, watched Baahubali 2 over the weekend and posted one of his rare tweets praising the film.
THALAIVAAAA... Feeling like god himself blessed us... our team is on cloud9... Anything couldn't be bigger... https://t.co/d9xSUQRJTI? rajamouli ss (@ssrajamouli) April 30, 2017
Baahubali 2, which concludes 2015's Baahubali: The Beginning, stars Prabhas, Rana Daggubati, Sathyaraj, Ramya Krishnan, Anushka Shetty and Tamannaah Bhatia. It released worldwide and in several languages on Friday. The box office numbers coming in are unbelievable - its opening day business doubled that of the first film.
All eyes will now be on Rajinikanth's 2.0, expected to be correspondingly major. The film stars Akshay Kumar as the nemesis of Dr Vaseergaran and Chitti the Robot, the double roles that Rajinikanth plays in the film.