The article on Ron Paul being the only no vote on a resolution honoring Nobel winner Liu Xiaobo linked here makes a very valid point. If Paul really believed that such resolutions were something that the House shouldn't do, then he should have not voted for any resolutions in the past.
Unless he wants to try to argue that honoring Chi Chi Rodriguez is somehow more important, but then he'd lose that argument once you factor in his voting yes on a resolution about Romanian adoptions.
I personally think all of those sorts of resolutions whether they take place in Congress, a state general assembly or a local council are a waste of time and effort, but once you vote yes? It's hard to later decide resolutions are of no value.