What is the ruling on repeating Tasbih and Tahleel in online forums every time one enters them?

There is no harm in reminding members of the forum to say "Tasbeeh" (Subhan Allah), "Tahleel" (La ilaha illa Allah), and "Takbeer" (Allahu Akbar), and for them to respond accordingly. This falls under the category of "Dhikr (definition) in a gathering," which has been highly praised. What is forbidden, however, is the belief that a specific order or a particular number is obligatory, or to dedicate Dhikr to this sequential method, as this is considered an innovation and a new practice. Specifying an act of worship to a particular time or place, or performing it in a manner not authentically reported, renders it an added innovation.