I responded the way I did because when I couldn't get more than a 512, I looked up how to get a 2048 on YouTube and there were plenty of results and the first video I scrolled down to was all I needed. Getting past a 256 tile is something you can see explained perfectly with a video, it doesn't have to be told to you specifically by someone. I'd be more what you'd consider welcoming if this person was asking about actually speedrunning the game which is what this forum and site are for.
It's very possible that they may be asking the question because they want to get good at it so they CAN speedrun it. Either way, no need to be so rude.
My strat is to think of it like building a snake. I use the bottom right corner and try to keep my highest block there. I build from right to left on the bottom, go up one row, and then build from left to right. The main difficulty comes from keeping the blocks where they need to be. I have found that you almost never want to move up and be very cautious about moving left. Always make sure your largest block stays in a corner and, if it goes somewhere else, make it a priority to get it back. Hope this helps!
