50Hertz isn't 50cycles, I know the two principals of that firm too well.
No, he's Tillson ok and that's why he hasn't denied it having obviously seen my posts. The style has been somewhat different but that difference has been gradually disappearing and the Nicola Sturgeon posts are pure Tillson. Also using the 50cycles synonym would appeal to Tillson's sense of humour, given he was once their customer and the later poor status of that company.
Tillson was a Leaver and 50Hertz said he was but has changed his mind. Add that to the change from Tillson departing on 31st December and 50Hertz joining the day after New Years Day and the set is complete, change of mind, change of online name, maybe New Year's resolution.
Of course it doesn't matter, he's welcome under any name, so long as he doesn't post Likes for himself, and most of our online names are not our real names.
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