When you use x11 hashing algorithm, isn't there a threat that FPGA will come and mine this coin to death?
As far as I know, X11 is not an algo included in FPGA threat.
I think it is. I can't remember which coin it was but it has been discussed multiple times that FPGA can also mine x11 I believe.
This was replied to

Yes, CPU/GPU/FPGA/ASIC cycles have already happened 2-3 times. Everyone forgot about FPGAs once ASCIs got out. FPGAs are more nerdy. X11 doesn't work with FPGAs, and you have to have the software for it, not only hardware. Boards are extremly expensive, difficult to find and FPGA programing requires long development cycles, i dont see them coming back in the near future.