Yes, Interesting idea. but this one is not exactly new and has been neutralized.
It would be most interesting for gold rather than trophies. I think that most players that reach high enough levels realize that trophies are a “curse”.
It can be a badge of honour, but it is also something that will give you harder matchmaking opponents.
Unless you are set a personal goal to have a high ranking and have a maxed out based and no use for gold, trophies are mostly useless.
If you are the average player dropping 500 trophies of so below your max is often the best way to raid.
Specifically regarding being online all the time, If you search the board your will find some info on this including this one: http://forums.flaregames.com/topic/1622-please-investigate-this-player/?hl=%2Bpakistan+%2Balliance#entry17883
I am not sure what the resolution was in this case. But some people have know to used “auto touch” type application in the past.
The game now kicks you out after some time if you have not made any attacks and you cannot log back in for a few minutes.
As a leader, this has caused problem for me at least once during a war. As I was online a lot to organize/coordinate without attacking.
I got kicked out and could not log back in. I ended up giving instructions via instant messaging instead.
Looking forward to your next interesting/creative idea.