The OP feels like parody, I must admit. ^^; I mean, if losing TWO subscribers is enough to bother you, you don't have enough subscribers to even think about making a living off your work. A number that small shouldn't even make you blink if you're actually within the realm of "success"...
I just checked out The Little Trashmaid on Webtoon; they have 1.6 MILLION. Losing or even gaining 2 subs would not matter to s0s2-- that's what a popular webcomic looks like. On the internet, that's what a popular ANYTHING looks like.
Also, no one has heard of Tapas. No one has heard of ComicFury, and no one has even heard of Webtoon except a small population of nerds on the internet (i.e. us). Webcomics in general are far from mainstream; they're barely part of the public consciousness. Of course asking around IRL is gonna get you a bunch of blank stares...there's definitely money to be made, but it's still an extremely niche market.
The lesson here is, you need to keep your perspective in check. 90% of webcomic artists will not be "successful" and will still have to hold down a day job. And of the 10% that are "successful", 7 out of 10 will STILL have to hold down a day job to actually make enough money to survive. It's normal.
Losing subscribers is normal. Branching out to other webcomic sites is also normal; you shouldn't consider it a drastic measure. The word 'mirror' exists for a reason...
Finally, if you don't mind a bit of constructive criticism:
1) Why are you bringing Frozen and TUA into this? They have nothing to do with your success or lack thereof, you just sound petty and juvenile. I guarantee the creators and fans of those franchises have no idea you even exist. =/
2) If you really want people to look at your webcomic, you might include a link to its new home in your announcement post??? Y'know, so that the few people who aren't put off by your childish complaints get a chance to click on that link and see your work...?
Business savvy is a large part of becoming successful on the internet, and the simple fact that you don't even bother to advertise your comic on a post that's explicitly about its dying popularity, tells me that you're not taking it seriously. So why should anyone else?