Virgin now own Telewest / Blueyonder who many will recall have been slated for, allegedly:
[a] blocking access to Sedo parking pages
blocking access to Google's Blogger [*.blogspot.com] sites
Both of the above have continued, post-acquisition.
The thought of them combining with the 123reg is nightmarish ... and about as likely to produce good results as Afghanistan launching a successful bid to host Miss World would.