Ok... my longer reply...
Firstly, there’s a very big difference between *online only* (with the agreed conditions that it will never be anything else), and online with the intention to move towards in-person.
From personal experience, and observation, I have come to believe that *online only* really only seems to function well, or have any chance of lasting long term, if the people involved have contact (not necessarily sex or intimacy... even just company or interaction) with others in-person. It’s often a very common choice amongst married people (who’s partners are often unaware)... however, it can also be an open relationship, poly or simply agreeing to being able to interact with others, either in or out of the local community. My past experiences (while I was still quite new) worked best this way (I was an active member in my local community, within agreed terms).
If you’re solo (single) and don’t interact with anyone or your community, *online only* can become lonely, stale and frustrating, and can lead to problems arising that may not normally, under different circumstances. Those things can be navigated, however sometimes you reach a point of wondering why on earth you’re working so hard to upkeep something that was just meant to be fun and light. Or, it can lead to one person wanting more than was originally agreed.
Having said all of that...
I also believe it can be a fantastic way to learn and grow. I think it’s actually quite a good introduction into the lifestyle, if you happen to chance upon a Dominant who takes their role in helping you grow, seriously. An unfortunate aspect... from what I’ve observed, is that it also seems to require kissing a lot of toads... because it does seem to attract those who’s focus is more along the lines of trying to find a quick, discreet way to “get off.”
The most important thing with any of these interactions *in my opinion* is that everyone involved is honest about what they want... you may not think it, but there will always be someone out there seeking the same thing/s as yourself... however, lying will never bring you closer to finding them, and the fulfilment that could be had