As others have pointed out, this kind of automated business use is very much against the T&Cs of carriers, so if you do this heavily you can expect to run into issues.
They can and do detect this kind of thing. In a similar vein there is also a whole industry in "sim boxes". Effectively a box of SIM cards / radio equipment that acts as a server. These can similarly be set up as servers to send SMS through carriers ( https://en.wikipedia.org/wiki/SIM_box ), though seemingly the popular use is to bridge VOIP calls to local destinations and sell "minutes" to others.
There is also apparently a whole industry in software to manage them. These days that management software allegedly includes measures to have the SIMs behave like humans to evade detection (the sims text each other, browse around, sleep for hours of the day, and so on).
Clearly, when you don’t transfer indexes, you will not have to transfer as much data.
However, the tradeoff is that the database is going to have to do more work to regenerate those indexes when you reconstruct it from the text dump at the destination (as opposed to the case where the indexes were included)
Couple of minor bugs, one of which is arguably not a bug:
1. When you play a game for the first time it invites you to make an account. When you make an account, it seems to forget that you played that particular game already.
2. By manipulating the URL you can play games from the future.
I like the calendar where you can go back to play other days. Enhancement request: would be nice for this to have an indicator of which days you have already played.
They can and do detect this kind of thing. In a similar vein there is also a whole industry in "sim boxes". Effectively a box of SIM cards / radio equipment that acts as a server. These can similarly be set up as servers to send SMS through carriers ( https://en.wikipedia.org/wiki/SIM_box ), though seemingly the popular use is to bridge VOIP calls to local destinations and sell "minutes" to others. There is also apparently a whole industry in software to manage them. These days that management software allegedly includes measures to have the SIMs behave like humans to evade detection (the sims text each other, browse around, sleep for hours of the day, and so on).